12/31/2023 0 Comments Cfl wattage equivalent chartThe bulbs were further found to contain nickel, arsenic, copper, and other metals. Chemical content analysis showed low-intensity red LEDs contained up to eight times the amount of lead allowed under California law. Mercury is also a neurotoxin that can have a harmful effect on humans, especially infants.Ī new study from UC Irvine and UC Davis scientists researched residue from various pulverized multicolored LED lights. With disposal of the CFL bulbs, its mercury content can evaporate and cause air and water pollution. However, its containing mercury may also harm the environment. The CFL bulb in saving energy is beneficial to the environment. The video below discusses the pros and cons of Fluorescent bulbs as compared to LEDs: 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. A CFL uses less than 15 watts and costs only about $75 of electricity per year. Typical LEDs release its heat back into a heat sink, making the LED bulb cool to the touch.Ĭompared 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. LEDs also produce smaller amounts of heat than CFLs. LEDs have a number of advantages over CFLs, including lower power consumption, longer lifetimes, and no toxic mercury use. These bulbs also require optimum temperatures to work they are known to function under capacity when switched on in lower temperatures. The switching process typically takes some time to complete, which is why CFLs take longer than other lights to become fully lit. Further, CFLs have flickering problems and a shorter life if it’s switched on and off frequently. However, its average life span is much less than that of an LED bulb. The CFL bulb is known to reduce replacement costs and is an energy saver. This directness allows for more efficient light and energy use.ĬFL and LED bulbs use up to 80 percent less energy than their incandescent counterparts and can last up to 25 times longer. Unlike CFL and incandescent bulbs, which emit light and heat in all directions, an LED only emits light in a specific direction. This generates UV light that excites a fluorescent coating or phosphor inside of the tube, resulting in the emission of visible light.Ī light-emitting diode (LED) is a semiconductor light source, where illumination is generated with movement of electrons through the semiconductor material. No - takes time to warm up to full capacityĬFLs generate light by sending an electrical discharge through a tube containing argon and a small amount of mercury vapor. Tanning bulbs, growth bulbs, bilirubin bulbs, germicidal bulbsĪpplications in aviation, automotive, advertising, and traffic signal lightingĮlectricity used equal to 60 W incandescent Much more than incandescent and fluorescent bulbs More than incandescent bulbs less than LED bulbs Semiconducting material doped with impurities to create a p-n junction, free of mercury Illumination by movement of electrons through semiconductor materialĪrgon, mercury vapor, tungsten, barium, strontium and calcium oxides $16 to $25 for Energy Star qualified bulbsįluorescent bulbs generate light by sending an electrical discharge through an ionized gas. Roughly $6 to $15 for a 4-pack $2 to $15 per bulb for Energy Star qualified bulbs ![]() ![]() Any defective LED bulb will usually fail within this time.Usually 6,000 to 15,000 hours. Most LEDs come with a minimum 2-year guarantee. ![]() Incandescent bulbs and CFL bulbs are more easily broken than LEDs, which increases their cost of use. Bulb breakage and bulb replacement costs have not been factored into this comparison chart.Some manufacturers claim the new LED bulbs will last up to 25 years under normal household use, but this is not proven. Estimates of bulb lifespan are projected, since it would take about 6 years of continuous lighting to test.We used the figure of $5.00 (for a 60 watt equivalent LED bulb) as an average among lighting retailers. Residential energy costs among the various states range from 35.17 cents (Hawaii) to 11.4 cents (Washington) per KWh. The figures used above are for comparison only, and are not exact. Savings to household by switching from incandescent bulbs KWh of electricity used over 25,000 hoursĮnergy Savings over 25,000 hours, assuming 25 bulbs per household Cost Comparison Between LEDs, CFLs, and Incandescent Light Bulbs
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