The white powder inside the bulb is a metallic compound called phosphor. The phosphors help provide continuous, white light, rather than the sheer flickering of the fluorescent gas. All contain a small fluorescent tube (either twisted or bent to shape), a plastic housing (containing an electronic circuit to start the lamp), and a threaded base for use in standard incandescent lamp sockets (or a pin base for use in a GU24 socket). The first incandescent lights to depart will be the 100-watt bulb next January 2012, followed by the 75-watt bulb in 2013 and the 60- and 40-watt bulbs in 2014. The white powder coating inside the glass tubing of a CFL contains a fluorescent coating. Halogen light bulbs are among the most common types of light bulbs in the world today, and they do have several benefits. An emphasis will be placed on more efficient LED light bulbs, which are brighter, use less energy and last longer. 3 Page EPA Guidelines for the proper disposal of broken fluorescent bulbs. Like I said earlier, mercury is a silver liquid, not a white powder. The energy efficiency of CFLs may be significant, but unlike traditional light bulbs, there is a hidden danger sealed inside each little bulb that requires special handling and disposal. This UV light reacts with the fluorescent coating to produce the white, visible light … The white powder is a phosphor coating that is applied to the interior of the glass. As far as I know, the white stuff is pretty harmless. When electricity enters a CFL, mercury and argon fumes inside the bulb produce invisible ultraviolet (UV) light. These items are light bulbs in various shapes, configurations, and designs. 4. UV In Our Atmosphere. Since you have mercury drop inside, it could mix with phosphor. 3.2. Flash powder is a composition of metallic fuel and an oxidizer such as chlorate. Yet how would that help you? Our atmosphere blocks out harmful high-energy radiation like x-rays, gamma rays and most of the ultraviolet rays.The atmosphere also absorbs most of the infrared radiation which reaches the Earth from space. The energy efficiency of CFLs may be significant, but unlike traditional light bulbs, there is a hidden danger sealed inside each little bulb that requires special handling and disposal. While generally considered safe, there are a few potential dangers that you need to consider when using halogen light bulbs… These phosphors glow only when irradiated with UV rays which, If at all you manage to lay hands on , could end up harming your skin & organs. How do CFLs work? When the mixture is ignited, it burns extremely quickly producing a bright flash that can be captured on film. Mercury – a potent, developmental neurotoxin that can damage the brain , liver, kidneys and central nervous system. 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