How to distinguish between metal halide lamp, xenon lamp and mercury lamp
The three lamps exemplified in this section, “xenon lamps, mercury lamps, and metal halide lamps, are all gas discharge lamps, which have the advantages of high power, high illuminance, high lighting quality, etc., and their prices are relatively high. Therefore, this category Lamps are mainly used in the field of industrial lighting.
Xenon lamps, mercury lamps, and metal halide lamps are all high-pressure gas discharge lamps (HID for short)
First, through the definition of xenon lamp, mercury lamp, and metal halide lamp, roughly distinguish between xenon lamp, mercury lamp and metal halide lamp:
Xenon lamps are generally referred to as HID Xenon Lamps, and the lighting is a cold light source;
Mercury lamps, metal halide lamps are generally referred to as HID Lamps, and the lighting is a warm light source;
You can clearly see the xenon lamp and the mercury lamp. One of the differences between the metal halide lamp is that the arc tube of the xenon lamp is filled with xenon gas (Xenon), while the price of xenon gas which is generally not available in the mercury lamp and metal halide lamp is generally more expensive. Therefore, the price of xenon lamps is generally much higher than that of metal halide lamps and mercury lamps.
Secondly, the xenon lamp can be turned on immediately, not only cold start, but also hot start. Therefore, it can be used as a car headlight. However, the start of the xenon lamp requires a high pulse voltage, usually 12000V. Therefore, the price of the ballast of the xenon lamp is generally more expensive.
For metal halide lamps and mercury lamps, only cold start, not hot start. In other words, if you turn off the lighted metal halide lamp or mercury lamp, you must wait another 5-10 minutes before you can light it up again. Therefore, they are generally used for commercial lighting such as square lighting and street lighting. For metal halide lamps, only 3000-4000V pulse voltage can be started, and for mercury lamps, no trigger is needed, and 220v voltage can be started.
Finally, let me talk about the difference between mercury lamps and metal halide lamps. The difference between the two is that metal halide lamps have pills, while mercury lamps do not. Therefore, the light efficiency of the metal halide lamp is high, and there are many kinds of color temperatures, from 3000k to 20000k, but because the arc tube has no pills, the mercury lamp can only be made with one color temperature, about 4000k, but the common point of the three is All belong to gas discharge lamps.
