In CFL bulbs an electric current flows between electrodes at each end of a gas-filled tube. Starting in Jan. The phaseout is a result of federal rules to switch to more energy-efficient bulbs. Energy-efficient bulbs cost more than incandescent bulbs but last much longer and save on energy costs in the long-term.
So why are people still buying incandescent bulbs and what will the phaseout mean for you? Incandescent bulbs cost much less than their energy-efficient alternatives — mainly CFLs compact fluorescent lamps and LEDs light emitting diodes.
An incandescent bulb can cost as little as 70 cents. The problem with incandescents is you end up paying more in electricity costs.
The typical incandescent bulb lasts about 1, hours, while a watt CFL bulb lasts 10, hours and a watt LED bulb lasts 25, hours. Energy Information Administration. Incandescents are known for their warm light, which looks particularly good against skin tones, Rey-Barreau said. On the other hand, fluorescent lights have gained a reputation for casting a harsh, bluish light.
LED lights can also overheat. This charge carrier gives energy in the form of the heat and light. The CFL uses mercury vapour which is dangerous for the environment and living beings. Also, it requires additional components like ballast, tungsten tube coated with barium, etc. The CFL work on the principle of ionisation of vapours. The process of ionisation converts most of the visible energy in the form of heat. This heat increased the power consumption of the bulb and reduced their working duration.
The LED uses semiconductor chip which is easily recycled by doping impurities in it. Most of the energy generated by the diode is converted into visible light. The heat emission is very less in LED which reduces their power consumption and increases their efficiency. This ultraviolet light when strikes with the fluorescent coating glass converts it into the visible light.
The semiconductor material which emits light with the passage of current. Reducing lifespan Having no effect. Recyclable No Yes Applications For domestic purposes. Motorcycle lights, in traffic signals, message display board etc. The CFL has a fluorescent tube which is filled with the mercury vapour. The fluorescent tube is a special type of tube which is internally coated with the phosphorous.
This tube absorbs the visible or invisible light of short wavelength and emits the light of longer wavelength. When the voltage is applied to the ballast of the CFL, the vapour of mercury becomes energised and emits ultraviolet lights. This ultraviolet light generates visible light when it collides with the tube. The CFL is mainly classified into two types, i. The integrated lamps have ballast and lamp which is connected to the single unit.
Please enter the valid email. Log in. Light Learning , Press News. April 29, Posted by Brandon McBride. Quick Menu — click below Brightness: which bulb is brighter? Life Span: which bulb lasts longest? Cost: which bulb costs less? Viribright 4. Sale Product on sale. Select options. Add to cart. Rated 5. Read more. Tags: Light Insights. April 26, Posted by Luis. The past year has been unique. This is an understatement of epic proportions.
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