Metal halide torch lamp ( White light lamp )
    This kind of light is developed from high-pressure mercury-vapor lamp, and be made up of super pure Quartz's tubing, in it to fill with mercury, argon, gallium's iodine melt thing, iron iodine melt thing and some rare metal halide melt thing. After tungsten electrode through molybdenum belt seal up, the circuit formed, and use metal lamp holder or china lamp holder with down-lead as the end. Iodine melt gallium in metal halide torch bring forth spectrum has this effect of indraught 403nm and 417nm spectrum line. This point is conspicuousness used for elaborate two nitrogen compound. Iodine melt iron is a kind of halide melt thing that can provide wide spectrum ultraviolet radiation, and can rise the lamp's spectrum exportation at range of 380nm. The metal halide torch filled with iodine melt iron has wonderful effect which be used for light polymer and daylight photographic film exposal system. The metal halide torch's spectrum energy is very anastomosis with some quality timber's absorbtion spectrum, and can cause hard reaction very fast, and be widely used for film, silk net, PCB, heavy nitrogen's pellicle, and board exposal. Besides, metal halide torch is also used for different print and surface coat industry. Metal halide torch is on the basic of include mercury and argon's mercury UV lamp add iron iodide, gallium iodide or other rare earth metal iodide. The most usual metal halide torch is iron iodide and gallium iodide. Metal halide torch with iron iodide is especially rise 380nm as the highest wave crest, it has wonderful effect to exposal photopolymer and daylight film. As to metal halide torch with gallium iodide is special rise 403nm and 417nm wave crest, and the highest wave crest 417nm has conspicuousness and good effect to exposal Diazo material.