What is a self ballasted light bulb?
Hereof, what is a ballasted light bulb?
In a fluorescent lighting system, the ballast regulates the current to the lamps and provides sufficient voltage to start the lamps. Without a ballast to limit its current, a fluorescent lamp connected directly to a high voltage power source would rapidly and uncontrollably increase its current draw.
Subsequently, question is, how do compact fluorescent bulbs work? CFLs produce light differently than incandescent bulbs. In a CFL, an electric current is driven through a tube containing argon and a small amount of mercury vapor. This generates invisible ultraviolet light that excites a fluorescent coating (called phosphor) on the inside of the tube, which then emits visible light.
Also question is, do LED bulbs need a ballast?
No LED bulbs require a ballast, although some are engineered to work with an existing ballast. You will find ballast-compatible, or "plug-and-play" LEDs that are designed to replace linear fluorescents, compact fluorescents, or HIDs. Incandescent and halogen lamps do not require a ballast.
Why CFL is better than electric bulb?
Advantages of CFLs CFLs are up to four times more efficient than incandescent bulbs. You can replace a 100-watt incandescent bulb with a 22-watt CFL and get the same amount of light. While initially they cost more, CFLs are less expensive in the long run because they last much longer than incandescent bulbs.