Metal halide lamps are similar to mercury vapor lamps, but instead of just mercury, they also contain all metals in the halide group of the periodic table (Hence the name). They are preferred over mercury vapor in areas where color rendition is important as they give a purer white light then mercury vapor, which tends towards the blue end of the spectrum A Mercury Vapor Lamp is a gas discharge lamp which uses mercury in an excited state to produce light. ... General Name, Symbol, Number Mercury, Hg, 80 Chemical series transition metals Group, Period, Block 12 (IIB), 6, d Density, Hardness liquid 13. ... A halide is a binary compound, of which one part is a halogen atom and the other part is an element or radical that is less electronegative than the halogen, to make a fluoride, chloride, bromide, iodide, or astatide compound. ... The periodic table of the chemical elements, also called the Mendeleev periodic table, is a tabular display of the known chemical elements. ... The noun spectrum (plural: spectra) has a variety of meanings. ...
Metalhalide is 3 to 5 times more efficient than incandescent; therefore, the higher initial cost of the metalhalide system is quickly repaid relative to the cost of operation for an incandescent system.
Metalhalide lamps are commonly available today in wattages from 32 up to 2000 watts, with corresponding lumen packages of 2,000 to 210,000.
Metalhalide is a highly efficient light source capable of delivering a white light in the range of 2700 to 5500 Kelvin with typical CRIs in the mid-60s to mid-70s.
Metalhalide lamps are similar to mercury vapor lamps, but instead of just mercury, they also contain sodium/scandium iodide and sometimes metals in the rare earth period combined with halogens in the halogen group of the periodic table.
They are preferred over mercury vapor in areas where color rendition is important as they give a purer white light than mercury vapor, which tends towards the blue end of the electromagnetic spectrum
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