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3D3D1000W Metal halide bulb.
This is a huge 1000W light bulb (about a foot long). The high efficiency of metal halide bulbs means that it gives off as much light as a 3-4000W incandescent bulb would: This is a seriously bright light! It goes in some lights I have in the yard next to my lake, which I got from an old gas station (the lights, not the lake). Basically they are small street lights, like you see lighting up car dealerships or, well, gas stations.
This bulb is listed under mercury because every metal halide bulb has a bit of mercury in it to form a conductive plasma for electricity to flow through. In addition to mercury a variety of rare earth metal salts and sometimes scandium are used to create a pleasing spectrum of light.
Source: Hardware Store
Contributor: Theodore Gray
Acquired: 1 December, 2008
Text Updated: 18 January, 2009
Price: $90
Size: 12"
Purity: <1%
Sample Group: Light Bulbs