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Generally it's a phosphorous compound.

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14y ago

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what is the long thin light bulb called?

The long thin light bulb is called a fluorescent tube or a fluorescent light bulb. It is commonly used in commercial buildings, offices, and schools for general lighting purposes.


What is the swirly light bulb called?

The swirly light bulb is called a compact fluorescent lamp (CFL). It is a type of energy-efficient light bulb that produces light by using electricity to excite the gas inside the bulb to create illumination.


Is the inner wall of a fluorescent bulb is coated with potassium?

No, the inner wall of a fluorescent bulb is typically coated with a phosphor powder, not with potassium. The phosphor coating absorbs the ultraviolet light emitted by the mercury vapor in the bulb and converts it into visible light.


What are fluorescent light bulbs inner wall coated with?

Fluorescent light bulbs have an inner wall coated with phosphor powder. This coating converts the ultraviolet light produced by the bulb into visible light when it strikes the phosphor.


What is the energy reducing light bulb called?

They are called CFL light bulbs. CFL stands for Compact Fluorescent Light .


Why does a fluorscent light not work in the cold?

fluorescent bulbs have mercury in them. There are heaters at the ends of the bulb that vaporizes the mercury to allow the light to be produced ( the fluorescence on the inside of the bulb is what actually glows). If the bulb is cold you do not get the ionization of the mercury to cause the fluorescent powder inside the bulb to glow, or it just glows a small amount.


Who invented fluorescent light bulb?

EEdmund Germer (90% sure) made the first fluorescent light bulb


What is the curly light bulb called?

The curly light bulb is called a compact fluorescent lamp (CFL). It is designed to be more energy-efficient than traditional incandescent light bulbs.


What is the green efficient squiggly light bulb called?

Florescent light-bulbs CFL Compact Fluorescent Lamp


When was the fluorescent light bulb invented?

1857


What type of light is 20w energy saving bulb Halogen Indandecent neon fluorescent etc please help?

The energy saving light-bulbs are usually fluorescent. Neon is a type of fluorescent light bulb.


How much is a fluorescent bulb?

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