What is a 20W CFL equivalent to?
100W incandescent
Efficiency and running costs The higher the wattage, the higher the running cost. The light output from a 20W CFL isn’t the same as that from a 20W incandescent. Rather, a 20W CFL would be the equivalent of a 100W incandescent (roughly 20%).
What is the equivalent of 15 watts LED?
LED light bulbs take energy efficiency to another level, using around 40% less energy than CFL equivalents….LED equivalents to CFL light bulbs.
| CFL Light Bulb Wattage | LED Equivalent Wattage |
|---|---|
| 15 Watt | 9 Watt |
| 9 Watt | 5.5 Watt |
| 5 Watt | 3 Watt |
Are CFL bulbs bad for your health?
Doctors at Stony Brook University in New York found that CFL bulbs produce significant levels of UVA and UVC emissions, which are harmful to human skin. This ultraviolet radiation can cause skin to age and burn and ultimately lead to skin cancer.
What is the disadvantage of CFL?
Some of the disadvantages of compact fluorescent bulbs are that they are cold temperature sensitive, not recommended for enclosed fixtures, can have a higher initial cost than incandescent, have a longer warm up time, they may have limited color temperatures, do not dim nearly as smoothly, and dimming decreases the …
What does CFL stand for in bulb?
CFL stands for Compact Fluorescent Light Bulbs. How do Compact Fluorescent Light Bulbs work? Unlike incandescent bulbs which use a filament, Compact Fluorescent Light Bulbs give off light when a mixture of three phosphors are exposed to ultraviolet light from mercury atoms.
What is inside a CFL bulb?
CFL bulbs are made of tubes filled with the gases argon and mercury. When in use, the electrical current flows through the gas mix, reacting to it. This causes the powder coating on the inside of the tube, made of phosphor, to activate, creating an ultraviolet light.
What is the wattage of a CFL light bulb?
A CFL bulb that produces the same amount of light as a 60 watt incandescent bulb (900 lumens) only uses around 15 watts of electricity. So you can put a CFL in the fixture that equals the light output of a 100 watt incandescent (1,600 lumens) and still only use 25 watts of electricity.
How many Watts Does a fluorescent light bulb use?
Around 20 to 20 watts in a fluorescent bulb is the same as 100 watts in an incandescent bulb. Differences will also occur between types and sizes of light bulbs.