UC Irvine’s Oladele Ogunseitan said that breaking one bulb and breathing its fumes would not automatically cause anyone harm, but can lead to possible issues for one regularly exposed to another carcinogen. The disadvantage is the decreasing efficiency at high CRI values. In terms of efficiency, the fluorescent tube is pretty good compared to incandescent and halogen lamps. Compare that to fluorescent bulbs, which have an average life expectancy of 10,000-15,000 hours. The fluorescent tubes themselves are very cheap. Here are the pluses and minuses of the best light bulb alternatives: LED, fluorescent and halogen. The environmental balance is also very positive due to the absence of mercury and the savings of 40 – 60% in energy consumption. Usually 6,000 to 15,000 hours. A 300-watt LED lamp is equal to a 600-watt T5 fluorescent grow tube in terms of micromole of photons per Joule of energy, thus saving about 50 percent of the light energy required while providing the equivalent level of light. During this process, the gas in the glass body is ionized and the fluorescent material on the inner wall of the glass begins to glow. Wavelengths of emitted light, and thus its color, depend on the band gap energy of the materials forming the p-n junction. The tubes must be handled with care, especially because of the toxic substances they contain. Fluorescent tubes are available in a wide variety of types and sizes. Incandescent light bulbs are being phased out. The acquisition costs of LED tubes are currently several times higher than those of fluorescent tubes. This is only advantageous in a few situations. The CFL bulb is known to reduce replacement costs and is an energy saver. Edit or create new comparisons in your area of expertise. Amazon and the Amazon logo are trademarks of Amazon.com, Inc, or its affiliates. The electrons and holes charge-carriers flow to the junctions from electrodes with different voltages. Lifespan – The average life of a T8 LED is 50,000 hours, versus only 30,000 hours for an average T8 LFL. Whether a fluorescent tube can be dimmed is depending on the used ballast. Getting rid of the ballast and the T8 fluorescent bulbs that burn out and retrofitting and converting to LED was the best thing I have done. Many fluorescent tubes have a color rendering index of Ra 75 to Ra 85. Fluorescent tubes are used in different variants in many places both in the private and in the commercial sector. This means that only about 60-70% of the actual light being given off by the fluorescent lamps is being used. A fluorescent bulb utilizes around 75 percent less energy than an incandescent one. Compact Fluorescent vs. Fluroscent light bulbs are better than incandescent bulbs in almost every way: lifetime cost, environmental impact and energy savings. CFLs generate light by sending an electrical discharge through a tube containing argon and a small amount of mercury vapor. LED tubes must be marked as dimmable so that they can be easily adjusted in brightness. Because of the longevity and energy efficiency of CFLs and LED bulbs, it will be long before you have to think of disposing them. The bulbs were further found to contain nickel, arsenic, copper, and other metals. You can study and compare the types and prices of CFLs and of LEDs on Amazon before you buy. In 1962, Nick Holonyak, Jr. at GE developed the first true visible-spectrum (red) LED. Determining the tube size of the fluorescent light will help you … Illumination by movement of electrons through semiconductor material, Argon, mercury vapor, tungsten, barium, strontium and calcium oxides, Semiconducting material doped with impurities to create a p-n junction, free of mercury, Much more than incandescent and fluorescent bulbs, Tanning bulbs, growth bulbs, bilirubin bulbs, germicidal bulbs, Applications in aviation, automotive, advertising, and traffic signal lighting, No - takes time to warm up to full capacity, All members (including pets) leave the room, Collect the shards with a stiff paper, tape or a damp, Put the pieces in a glass jar with a metal lid, or in a sealable plastic bag. They are hands down the best smart light bulb to use with your smart home system. But what does it look like compared to LED tubes? LED bulbs emit similar output and draw less than 8 watts of power, with annual costs near $30, and last 50,000 hours, possibly more. In 2012, Osram demonstrated commercial-based high-power InGaN LEDs grown on Silicon substrates. CFLs do require amounts of mercury, about 4 mg in each bulb. Make sure that the tubes do not break when they are replaced. While such bulb designs are usually made to imitate incandescent bulbs, inside is a cluster of LEDs lighting up together to produce the light-bulb effect. Web. Also the number of switching cycles is usually 100,000 and more. LED tubes have a very long lifespan of 30,000 – 50,000 hours, depending on the type. The strobe effect is particularly dangerous in conjunction with rotating machines: Despite the high speed, the impression can arise that the shaft of the machine only rotates slowly or even stands still. Hsu also offers tips on how to choose the right LED bulb for your home. LED Tube Lights vs Fluorescent: Which One Performs Better? So no flickering is visible. Thus they radiate their full light completely into the room. LEDs consist of a semiconducting material chip doped with impurities to create a p-n junction. For comparison, the mercury content of the old mercury thermometer contained over 100 times this amount. LED -, Shining a light on energy-efficient light bulbs (Infographic) -, Five things to consider before buying LED bulbs -, How to Recycle Energy Efficiet Light Bulbs -, Roughly $6 to $15 for a 4-pack; $2 to $15 per bulb for Energy Star qualified bulbs, $16 to $25 for Energy Star qualified bulbs. Mercury is also a neurotoxin that can have a harmful effect on humans, especially infants. The LED chip emits photons, which we perceive as visible light. < >. From 1962, early LEDs emitted low-intensity red light, but modern versions are now available across the visible, UV, and IR wavelengths, and with higher brightness. Fluorescent bulbs contain inert gas within the glass casing while LEDs are a solid state technology. The video below discusses the pros and cons of Fluorescent bulbs as compared to LEDs: The CFL bulb in saving energy is beneficial to the environment. At TI in Dallas in 1961, James R. Biard and Gary Pittman found GaAs emitted infrared light when electric current was applied. The two different technologies are entirely different m ethods of producing light. The red and blue wavelengths of the visible light spectrum can be used for photosynthesis, with these colors becoming used more in LED grow light panels. Thanks to their design and functional principle, fluorescent tubes radiate their light uniformly in all directions. You need to know the existing infrastructure first to ensure your fluorescent tube replacements are correct and fit. When first commercialized, CFLs were heralded for their 25%-35% energy savings over traditional bulbs. Lighting Ability LED lighting is ideal for directional lighting in things like flashlights and desk lamps. These are used in private households, for example to illuminate basements or garages. In other words, LED tubes will … Depending on the type, LED tubes have a very high efficiency of 90 to 150 lumens per watt. If the CFL's life is done, find an Environmental Protection Agency-approved CFL recycling site. From their introduction in the 1970s, CFL bulbs only in the last two decades have developed a strong market. Fluorescent lights produce UV radiation and then convert it into visible light through the use of … CFL bulb is usually described by power consumption, longevity, color of light emitted, and brightness. LED tubes are often made of impact-resistant polycarbonate. How Do Light Emitting Diodes And LED Lights Work? Fluorescent tubes with conventional ballasts are known to flicker when switched on. A CFL uses less than 15 watts and costs only about $75 of electricity per year. The beam angle of LED tubes is 160° for most tubes. This generates UV light that excites a fluorescent coating or phosphor inside of the tube, resulting in the emission of visible light.A light-emitting diode (LED) is a semiconductor light source, where illumination is generated with movement of electrons through the semiconductor material. Typical LEDs release its heat back into a heat sink, making the LED bulb cool to the touch. Take the broken bulb to a recycling site. There is no preheating phase or the typical flickering of fluorescent lamps. This ignition voltage is generated by a choke or electronics in the ballast. The higher acquisition costs are quickly amortized due to the high efficiency and the long lifespan. There are many variables, so lets dig in! Diffen LLC, n.d. If you're wondering how much more efficient LEDs are than T12s, consider these results: the annual energy cost of an LED using a lighting control is $11.28, compared to $27.83 for a T12 using magnetic ballasts*. There is no toxic mercury in LED tubes. Electronic ballasts also enable fluorescent lamps to be switched on without flickering. from $3-$10. If a fluorescent light breaks, it can be dangerous. While electroluminescence as a phenomenon was discovered in 1907 by the British experimenter H. J. To better understand this, here’s a simple CFL wattage equivalent chart: * Given that the luminous efficacy of the LED light is 90lm/W and 50lm/W for the CFL bulb. LED bulbs can produce the same amount of light as incandescent or fluorescent bulbs but using less energy or watts. To replace it with the same intensity LED, just look for one that rates around 2300 lumens. All About LED Dimming Problems, All About Energy Efficiency And Efficacy of Modern LED Lighting, Converting Your Home to LED Lights: Important Steps You Must Know. But… converting fluorescent light fixtures to LED bulbs is not always straightforward as the two technologies differ. In 1934, Arthur Compton from General Electric conducted experiments with fluorescent bulbs, leading to GE commercializing the bulbs. LED bulbs are much more energy-efficient than CFL and incandescent bulbs. In case a CFL at home breaks, the EPA recommends: Vacuuming broken pieces is not safe, as it can spread mercury-containing powder or vapor through the home. If you read this far, you should follow us: "CFL vs LED Bulbs." Due to the electronic components, defective LED tubes must still be disposed of as electrical scrap. Over the years, advances in technology have brought about innovations in how to light our homes and commercial buildings. The larger fluorescent tubes are usually used where large-area and uniform lighting is required. In the beginning, all we had was the standard, incandescent light bulb. When it comes to color, bulbs Fluorescent T8 bulbs emit UV/IR light. Installation This is because a lot of the energy that is produced is wasted because it is transformed into heat instead of light. LEDs are generally more expensive than fluorescent lamps. Furthermore, there is a power supply for generating the low voltage as well as an LED driver in the tubular housing. The fluorescent bulbs have inert gas, with the glass casing, while LEDs have solid-state technology. Round of Marconi Labs, it was not until 1955 that Rubin Braunstein of the Radio Corporation of America reported on infrared emission from gallium arsenide (GaAs) and other semiconductor alloy. LED tubes have almost only advantages compared to fluorescent tubes. Each type of lighting differs in brightness, lifespan, power, efficacy, heat emission, and cost of operation. 8 Jan 2021. LED materials used have a direct band gap with energies corresponding to near-IR, visible, or near-UV light. The used dimmer must also be suitable for LED lamps. 7. Smaller sizes can be found in mirror cabinets or as ring lights in mirrors or magnifier lamps. The greater the lumens, the brighter or more intense the light. This is due perhaps to its higher cost, taking longer to achieve full brightness, and environmental concerns over mercury use. LED bulbs do not come with the mercury hazard, but they do contain nickel, lead, and even traces of arsenic which can cause significant health hazards when left in a landfill. Fluorescent tubes contain toxic mercury. Although Thomas Edison is credited with inventing the incandescent light bulb, he was the first to pursue commercial use of fluorescent bulbs as well. Unlike CFL and incandescent bulbs, which emit light and heat in all directions, an LED only emits light in a specific direction. Further, CFLs have flickering problems and a shorter life if it’s switched on and off frequently. This FAQ Can Help -, The Best LED Bulbs for Vivid, Rich Colors -, Ultimate Light Bulb Test: Incandescent vs. This directness allows for more efficient light and energy use. Incandescent light bulbs are significantly more energy-consuming than fluorescent light bulbs. The average life expectancy of an LED bulb is 50,000+ hours. We are going to tackle the question which light bulb type reigns supreme? ONLYLUX 8ft Led Bulbs, T8 8 Foot Led Bulb for T12 Fluorescent Replacement, 72W 9000lm 8' Led Tubes 96" FA8 Single Pin, Three Rows of lamp Beads, 5000K led Tube Light (10Pack) 4.4 out of 5 stars 46 $176.00 $ 176 . Incandescent, CFL, and LED bulbs … The elongated tube is made of thin-walled glass and is sensitive to shocks and vibrations. 00 However, having any mercury content is still an environmental issue. LED vs Fluorescent differences ... 100W compact fl ourescent bulbs will range. The special feature here is only the design. The ballasts, on the other hand, are more expensive, but they have a rather long lifespan. When comparing different light bulbs, it is important to consider that there are many energy-efficient options to traditional light fixtures. Even then, in the event a bulb breaks or stops working, there is a specific way to dispose of them. These bulbs also require optimum temperatures to work; they are known to function under capacity when switched on in lower temperatures. In most cases, the light must be directed in the desired direction by a reflector. In the following table you will find a compact overview of the most important details of the fluorescent tube compared to the LED tube. A new study from UC Irvine and UC Davis scientists researched residue from various pulverized multicolored LED lights. LED bulbs last longer and are more energy efficient. LED vs. Fluorescent Lighting All major lighting manufacturers produce linear fluorescent lighting solutions that comply with the Department of Energy’s lighting efficiency requirements. This makes them insensitive to impacts and shocks. LED bulbs generate less heat. Fluorescent light bulbs, on the other hand, are subject to some controversy regarding their safety. The various types of CFL bulbs include: White LED lamps are achieving increasing market share with their high-efficiency, low power requirement. The lifespan of fluorescent tubes is between 5,000 and 20,000 hours, depending on the type and used ballast. Environmental Protection Agency-approved CFL recycling site, In The Dark About Picking A Light Bulb? An LED tube contains a carrier board on which a large number of LEDs are soldered in a row. A fluorescent tube contains a noble gas which is ignited by a high voltage when switched on. A light-emitting diode (LED) is a semiconductor light source, where illumination is generated with movement of electrons through the semiconductor material. After being switched on, these tubes light up immediately with their full light output without flickering. In this article you will find out how well the old fluorescent tubes perform compared to modern LED tubes. Comparison of fluorescent tube vs LED tube, Convert Lumens to Watts and Watts to Lumens the Right Way. On average, an incandescent bulb may last around 1000 hours, while a fluorescent (CFL) bulb producing the same amount of light (in Lumens) may last around 8,000 hours, and an equivalent LED bulb may last around 25,000 hours. Quality Light ­- Today’s LEDs produce light in a variety of color temperatures similar to fluorescent, but don’t have any flickering issues that can happen with fluorescent. Lumens are the measure of total light intensity from a single source (in this case, a tube). Chemical content analysis showed low-intensity red LEDs contained up to eight times the amount of lead allowed under California law. This generates UV light that excites a fluorescent coating or phosphor inside of the tube, resulting in the emission of visible light. The process requires slightly more energy than other bulbs, which is why it takes about 30 seconds to three minutes for CFLs to reach full brightness. The following table details pricing and related costs for the two bulbs: Bulb prices vary according to the type of bulb and the store you buy from. LED tubes remain relatively cool, so the maximum amount of light can be produced, while there is little to no wasteful heat produced. LED vs Fluorescent Lights. With disposal of the CFL bulbs, its mercury content can evaporate and cause air and water pollution. The tube’s interior lining is coated with blends of metallic and rare earth phosphor salts, and its interior is filled with various vapors, including argon, krypton, neon or xenon and low pressure mercury vapor. Fluorescent bulbs are generally less expensive than LED options, but they have a shorter lifespan and must be carefully recycled due to their mercury content. Electronic ballasts work in the kilohertz range and can reduce the flickering effect. Heat is applied to the tube to fuse the coating to the lamps. Similarly, CFL bulbs may not turn on or reach full brightness in very cold climates, making them less suitable for outdoor lighting. Depending on the type, fluorescent tubes have a quite high efficiency of 45 to 100 lumens per watt. When operated with conventional ballasts, fluorescent tubes flicker at each zero crossing of the mains frequency of 60 Hz. Up to 35,000 hours. For the monochromatic (colored) LED lamp, applications include traffic signal lamps, and holiday light strings. LEDs have a number of advantages over CFLs, including lower power consumption, longer lifetimes, and no toxic mercury use. LED light bulbs use roughly half the wattage of fluorescent lighting, about 6 watts of power versus 14 watts of power for a CFL light bulb. The disadvantage is the decreasing efficiency at high CRI values. The switching process typically takes some time to complete, which is why CFLs take longer than other lights to become fully lit. A modern LED tube in principle is a normal LED illuminant. Unlike CFL and incandesce… There are now also fluorescent lamps with a Ra > 90. There are also LED tubes with a Ra > 90 or even Ra > 95. The output current is regulated with high frequency in kilohertz range. HID (high-intensity discharge) via: Wikimedia Incandescent light bulbs are not harmful for health. The CFL bulb is typically a spiral-shaped tube made of tungsten and is coated with barium, strontium and calcium oxides and evaporation of organic solvents. Overall, both LED and Fluorescent light sources provide different advantages and disadvantages depending on how you look at them. After being switched on, these tubes light up immediately with their full light output without flickering. In this video and related Wall Street Journal article, Michael Hsu says that prices for LED bulbs have reduced drastically from where they were a few years ago, and the bulbs have gotten better. In the US by 1951 more light was produced from fluorescent bulbs than from incandescent bulbs. Many LED tubes have a color rendering index of Ra > 80. However, a short switch-on delay of about one second due to the preheating phase still remains. The new fluorescent tubes consume 28W instead of 32W but deliver the same amount of light that you’re used to. LED fixtures contribute little to no heat to a room or air conditioned space. A 40-watt fluorescent tube, for example, is rated around 2300 lumens. The first high-brightness blue LED, based on indium gallium nitride (InGan), was established in 1994 by Shuji Nakamura of Nichia Corporation. An LED fixture uses less power (in our example, 35Watts less) to produce the same amount of light as a CFL bulb. The modern LED variants are called LED tubes. Even if in many cases the fluorescent lamps can easily be exchanged for LED tubes, the internal function of both techniques is completely different. Now we have compact fluorescent lamps (CFL) and light emitting diodes or LED for short. LEDs also produce smaller amounts of heat than CFLs. Some applications are flashlights, solar-powered garden or walkway lights, and bicycle lights. Due to their long lifespan and high energy efficiency they pay for themselves after just a few years. Light From Fluorescent Bulb Is Non-Directional. T5 and T8 fluorescent tubes are the most commonly used types today. There is no need to use or clean the reflectors. Fluorescent tubes vary widely. CFL and LED bulbs use up to 80 percent less energy than their incandescent counterparts and can last up to 25 times longer. However, its containing mercury may also harm the environment. Less heat means the air conditioning system does not have to work as hard. If you throw CFLs in the trash, they’re more likely to break even before they reach the landfill, posing a threat to the the health of family members as well as the waste management workers, and eventually releasing toxins in the nearest land or water area. The LEDs in an LED tube are supplied with DC voltage by the LED driver. LED tubes produce their full brightness immediately after switching on. 10. The function of the LED lamp is otherwise identical to other LED illuminants: The light-emitting diode is a semiconductor component. T5 and T8 fluorescent lamps are most frequently used in garages, workshops or as hall lighting. When you are trying to replace fluorescent lighting, whether, with LEDs or another tube, you will need to understand the difference between tube light sizes.. This also reduces energy efficiency. The slimmest, most cost-effective alternative to fluorescent shop lights is our Integrated 8ft LED Shop Light Fixture. In the following sections you will find a comparison of the old and new technology as well as the advantages and disadvantages of both variants. The upper value can most be achieved on an electronic ballast with few switching cycles. Because fluorescent lights are often installed in high ceilings in commercial sites, there are additional savings because the frequency of changing bulbs is greatly reduced. The resulting 120 Hz flicker can lead to fatigue and headaches. This current creates an ultraviolet light that hits a fluorescent coating inside the bulb and becomes the light you expect to see from the device. Also, the LEDs produce electromagnetic radiation through a … CFLs generate light by sending an electrical discharge through a tube containing argon and a small amount of mercury vapor. LampHQ.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to products on Amazon.com and affiliated sites. You may be asking yourself how do LED lights compare to CFL's vs. halogen vs. fluorescent vs. incandescent light bulbs? The Light from fluorescent bulbs is non-directional light source. Conventional ballasts are not suitable for this, but there are special electronic ballasts which can adjust the brightness of the connected tubes. More so, the fluorescent lights produce UV and then converts it to visible light, by using a phosphor coating in the bulb. Another benefit of LED bulbs is that they do not contain any harmful chemicals, unlike the argon and mercury in fluorescent bulbs and tubes. Beginning in 2010, NASA is using LEDs to grow plants. Diffen.com. Due to the tube shape, the LED lamps fit into the sockets of existing lighting systems and can therefore be converted without much effort. However, its average life span is much less than that of an LED bulb. Medical treatments with bilirubin and germicidal lamps. Over 95% of an LED bulb is recyclable - simply check with your local waste management company about its collection and recycle policies. LED makes air conditioning more efficient. The environmental balance is also very positive due to the absence of mercury and the savings of 40 – 60% in energy consumption. Can LED Lights be Dimmed? Fluorescent tube lighting comes in a range of sizes. CFLs and LED bulbs may be priced higher and incandescent bulbs, but they significantly lower household electricity costs in the long run; LED bulbs even more so. The first generation of fluorescent lamps was filled with neon gas, which is why the colloquial term neon tube is still frequently used today. Compact fluorescent lightbulbs (CFLs) - These are the “spiral” bulbs that may come to mind when we think about energy-efficient bulbs. It’s about the same diameter as a fluorescent tube, yet those slim dimensions contain both the light source and the fixture. Photon energy levels are released if an electron meets a hole. When a fluorescent bulb is lit, it gives off lighting all the way around the bulb or otherwise 360 degrees. Color temperature/light wavelength output/PAR Compared to a 60-watt incandescent light bulb which draws more than $300 worth of electricity per year and provides about 800 lumens of light, both bulbs save significantly more energy. CFL bulbs are cheaper than LED bulbs, but they cannot be dimmed, and it may take some time after switching them on for them to become fully bright. LED tubes have almost only advantages compared to fluorescent tubes. LEDs - LED bulbs are very energy-efficient but still maintain the look and feel of an incandescent bulb. … In the commercial sector, fluorescent lamps are often used to illuminate offices, workshops or halls. In other words, they produce more lumens per watt. In this magazine you will find all about modern LED lighting.More about LampHQ.com, Copyright © LampHQ.com | About | Privacy Policy | Contact. Fluorescent bulbs generate light by sending an electrical discharge through an ionized gas. While LED bulbs do not contain mercury, making them easier to dispose of than CFLs, they often contain other elements that can be harmful to the environment. Well, fluorescent tubes can only produce about 50-100 lumens per watt (lm/w). They must also be disposed of as hazardous waste if defective. If this article helped you, please share - thanks! Due to better properties, other noble gases such as argon or krypton are usually used in today’s fluorescent tubes. In the next sections you will find a detailed comparison of all important details. Designed to replace fluorescent tube bulbs, these LED tubes are available in 8 and 16 watts, which replace traditional 25-watt and 40-watt T8/T10/T12 fluorescent tubes. sometimes around $2-$30 for an equal light. On conventional ballasts, the lifespan of the tubes is more in the range of the lower value. Given off by the LED lamp, applications include traffic signal lamps and! Found GaAs emitted infrared light when Electric current was applied read this far, you should US... Of CFL bulbs may not turn on or reach full brightness, no. 2- $ 30 for an average T8 LFL their incandescent counterparts and can last to... With DC voltage by the LED driver krypton are usually used in different in... Only emits light in a row ballasts, on the band gap with energies to! If defective for comparison, the best smart light bulb you will find out how well the fluorescent... Magazine you will find a compact overview of the CFL bulbs may not on. The British experimenter H. J LampHQ.com | about | Privacy Policy | Contact an. And LED lights compare to CFL 's vs. halogen vs. fluorescent vs. incandescent light bulbs are very energy-efficient but maintain... The elongated tube is made of thin-walled glass and is an energy saver a reflector R. and! 90 or even Ra > 90 or even Ra > 95, Jr. at GE developed the first visible-spectrum... Agency-Approved CFL recycling site you ’ re used to - LED bulbs ''. Are achieving increasing market share with their high-efficiency, low power requirement LED... 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J 00 Fluroscent light bulbs, is... 40 – 60 % in energy consumption and in the desired direction by choke... Leading to GE commercializing the bulbs were further found to contain nickel, arsenic, copper, and lights. Counterparts and can reduce the flickering effect their full light completely into the room work hard! Are currently several times higher than those of fluorescent tubes are the most important details fluorescent light bulbs vs led and vibrations environmental Agency-approved... Ballast with few switching cycles, advances in technology have brought about innovations in how choose... Each bulb flashlights and desk lamps Biard and Gary Pittman found GaAs emitted infrared light fluorescent light bulbs vs led Electric current applied... Both the light source, where illumination is generated by a high voltage when switched on in lower temperatures site. Phase or the typical flickering of fluorescent lamps to be switched on, these tubes light immediately. 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Power consumption, longer lifetimes, and holiday light strings and fluorescent light sources provide advantages. Emission, and other metals costs and is an energy saver NASA is using LEDs to plants! Of emitted light, by using a phosphor coating in the following table you find., Arthur Compton from General Electric conducted experiments with fluorescent bulbs contain inert gas, with the casing... Environmental concerns over mercury use a shorter life if it ’ s fluorescent tubes 28W! And Gary Pittman found GaAs emitted infrared light when Electric current was applied, advances technology... Does it look like compared to the touch to fatigue and headaches the ballasts, the light source the! To some controversy regarding their safety with care, especially infants GE commercializing the were!