Which is better, led light source or metal halide light source of projector?

The service life of metal halide lamps for commercial lighting is about 2000 hours, and that for industrial lighting is about 5000 hours. The service life of commercial LED lamps is more than 50,000 hours, and that of industrial LED lamps is about 80,000 hours. That is to say, the service life of LED lamps is 10-20 times that of metal halide lamps.

2. Comparison of light quality and light attenuation

The LED lamp is powered by DC, without stroboscopic, which is harmless to eyes; Metal halide lamps have strong light, and the eyes can't adapt to the light. If you often look at the light of metal halide lamp, it will do great harm to your eyesight and eyeball. In addition, the annual light attenuation of metal halide lamps can reach 70%, and the maximum annual light attenuation of LED lamps is 4%. This is also the obvious advantage of LED.

3. Comparison of economic and social applicability

LED lamps (Taobao lamps are hot-selling) do not contain lead, mercury and other environmental pollution components at all, and the lighting has no ultraviolet radiation, and the working temperature is low to reduce heat emission. Saving electricity and reducing emissions has always been the voice of the international community. In addition, according to the comparison of service life, the service life of metal halide lamp is obviously shorter than that of LED lamp. Therefore, the use cost of metal halide lamps will be greatly increased. According to the comparison of service life, the service cost of metal halide lamps is 10-20 times higher than that of LED lamps (ignoring the cost and electricity charge when replacing lamps). The energy consumption of LED lamps is low, and the energy consumption of LED lamps and metal halide lamps with the same wattage is 3-4 times that of LED lamps. That is to say, under the same lamp efficiency, the electricity cost of using metal halide lamps is 3-4 times that of LED lamps.

According to the comparison of the above aspects, it can be concluded that the advantages of choosing LED lamps are: 1, uniform light, and no glare, visual fatigue and line-of-sight interference caused by glare. 2, eye protection: constant current drive, DC power supply without stroboscopic, will not cause eye fatigue. 3, boot, no delay, don't wait for the light. 4, good heat dissipation, no high temperature, long-term use of the lamp body is not hot, and it will not cause the lamp body to turn yellow and black. 5, safe and durable: impact resistance, strong earthquake resistance, no ultraviolet and infrared radiation; The service life is over 50,000 hours. 6, green and energy-saving, and the materials are completely free of lead, mercury and other components that pollute the environment. In the long run, LED lamp is the trend of future lighting development. Choose LED lights to save money! ! !