
How do these energy saving bulbs work? As you may know, a normal incandescent light bulb runs a current of electricity through a wire filament. The heat from the electrical current causes the filament to glow bright.
A compact fluorescent light bulb works a bit differently: The electrical current flows through the glass tube filled with argon gas and a bit of mercury vapor. The electrified gas emits ultraviolet light that excites a phosphor coating on the inside of the glass tube. It's this reaction that emits the bright visible light that comes from the CFL light bulb.
Older CFL bulbs were known to make a low hum or buzzing sound while they were on. This understandably made people nervous about using them, worried that they were somehow unstable. Newer bulbs, especially ones rated by the Energy Star program, make no sound at all.
We know what you might be thinking... "If CFL bulbs contain mercury, aren't they dangerous?" Not at all! It's been proven that while CFL bulbs do contain mercury, none of that mercury is released from the bulb as long as the bulb isn't broken. In fact, one old-style thermometer has more mercury inside it than 125 CFL light bulbs.

To begin saving on your monthly energy bill, you can find the type of CFL bulbs that suit your needs in our online store.
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