What is Metal halide lamp

          What is Metal halide lamp

    Metal halide lamp has two kinds, one kind is quartz halide lamp, the electric arc tube's shell is made of quartz. The other is ceramic metal halide lamp, the electric arc tube's shell is made of translucent alumina ceramic. Metal halide lamp is one of the best electric light source in the world, it has high photosynthetic efficiency (65~140 lm/w), long life (5000~20000 h), good color rendering (Ra:65~95) compact structure, stable performance, etc. It has the advantages of fluorescent lamp, high-voltage mercury lamp, high pressure sodium lamp, and overcome the defects of these lamps. Metal halide lamp brings together the main advantages of gas discharge lamp. In particular, it has three advantages, such as high efficiency, long life and light color. Therefore, metal halide lamp develops rapidly and used more and more widely. In the market with other gas discharge lamp, metal halide lamp with mercury padding in the lamp. Mercury is toxic substances, careless handling will cause environment pollution and damage health. A gas discharge lamp emits a mixture of metallic vapor (such as mercury) and a mixture of halides (such as dysprosium, sodium, thallium, indium, etc.). Adding metal to the spectral line, so the light color improves, as well as light efficiency. The color temperature of this kind of lamp is about 4000K, the color index is 70, the light efficiency is above 70 lm/w.