• Categories:Industry Information
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• Time of issue:2020-02-07 12:26
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(Summary description) 　　Metal halide lamps and LED explosion-proof lamps are both commonly used lamps in gas stations, so what is the difference between their lighting principles? What are the advantages of LED lamps compared with traditional metal halide lamps? Below, the editor specially organizes them for you Let's take a look at the relevant information together! 　　 The light-emitting principle of metal halide lamps: Metal halide lamp is a discharge lamp that works with AC power and generates arc discharge in the mixed vapor of mercury and rare metal halide. Metal halide lamp is the third generation of high-pressure mercury lamp by adding various metal halides. light source. High temperature and high pressure, ultraviolet and infrared radiation. The light-emitting principle of LED explosion-proof light: LED is a solid-state semiconductor device that can directly convert electricity into light. The heart of the LED is a semiconductor chip. One end of the chip is attached to a Mitutoyo LED on a bracket, one end is the negative electrode, and the other end is connected to the positive electrode of the power supply, so that the entire chip is encapsulated by epoxy resin. A semiconductor wafer consists of two parts, one is a P-type [1] semiconductor, in which holes dominate, and the other is an N-type semiconductor, which is mainly electrons. But when the two semiconductors are connected, a "P-N junction" is formed between them. When the current acts on the wafer through the wire, the electrons will be pushed to the P region, where the electrons and holes recombine, and then emit energy in the form of photons, directly converting the electrical energy into light. Small light loss, high light efficiency, long life, no radiation. 　　 Compared with traditional metal halide lamps, LED lamps have the following advantages: 1. The safety of LED lamps is better: compared with metal halide light sources, LED light sources have lower heat generation than metal halide lamps, better safety, and are not easy to generate a lot of heat and increase indoor temperature. The output of LED lamps is DC 35V, which is a safe voltage, and the current is also small, and it is not easy to generate electric sparks, which is safer than metal halide lamps; Second, LED lamps are more energy-saving: the price of LED lamps is higher than that of metal halide lamps, but from the long-term energy saving calculation, the electricity cost saved can generally make up the difference in the price of lamps in about three years; 3. LED lamps have a longer lifespan: ordinary metal halide lamps have a lifespan of about 10,000 hours, 10,000-15,000 hours, and all light sources and electrical appliances must be replaced. The cost of light sources and electrical appliances accounts for about 60% of the lamp. The service life of the light-emitting chip of LED lamps is about 50,000 hours, and the service life of electrical appliances is about 25,000 hours. Generally, the maintenance is only to replace the electrical appliances, and it only needs a few dozen yuan. Reduce maintenance times and maintenance costs due to longer life.