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Like other gas-discharge lamps such as the very-similar mercury-vapor lamps, metal-halide lamps produce light by ionizing a mixture of gases in an electric arc.In a metal-halide lamp, the compact arc tube contains a mixture of argon or xenon, mercury, and a variety of metal halides, such as sodium iodide and scandium iodide. [7]
The amount of mercury in a fluorescent lamp varies from 3 to 46 mg, depending on lamp size and age. [4] Newer lamps contain less mercury and the 3–4 mg versions are sold as low-mercury types. A typical 2006-era 4 ft (122 cm) T-12 fluorescent lamp (i.e. F34T12) contains about 5 milligrams of mercury. [5]
Lamps; include, but are not limited to, fluorescent, high intensity discharge, neon, mercury vapor, high pressure sodium, and metal halide lamps. Aerosol cans : a non-refillable receptacle containing a compressed gas, liquid, or solution under pressure for expelling a liquid, paste, or powder.
But suppose you discard — or give away — your halogen and incandescent bulbs. Odds are good that replacing them with LED bulbs could save you a fair amount of money.
The start of a new year is the perfect time to hit reset. Here's a list of 21 things to throw away to kick off 2025 clutter-free!
Learn how to get rid of clutter in your house. We share the rule of thumb for getting rid of things and 13 items to throw out before the new year begins.
To reach this higher temperature, much more energy is needed, leading to the high environmental benefits of aluminium recycling. Americans throw away enough aluminium every year to rebuild their entire commercial air fleet. Also, the energy saved by recycling one aluminium can is enough to run a television for three hours. [12]
However, mercury-vapor lamps are falling out of favor and being replaced by sodium-vapor and metal-halide lamps. Metal-halide and ceramic metal-halide lamps can be made to give off neutral white light useful for applications where normal color appearance is critical, such as TV and movie production, indoor or nighttime sports games, automotive ...