Basic characteristics of LED light sources.p3 indoor stage rental led screen

　　1. High luminous efficiency

　　After decades of technological improvement, LED has significantly improved its luminous efficiency. The efficiency of incandescent lamps and halogen tungsten lamps is 12-24 lumens/watt, fluorescent lamps are 50-70 lumens/watt, and sodium lamps are 90-140 lumens/watt. Most of the power consumption becomes heat loss. After improvement, the LED light efficiency will reach 50-200 lumens/watt, and its light has good monochromaticity, narrow spectrum, and can directly emit colored visible light without filtering. Countries around the world are intensifying research on improving the luminous efficiency of LEDs, and their luminous efficiency will be greatly improved in the near future.

　　2. Low power consumption

　　LED single tube power 0.03-0.06 watts, using DC drive, single tube drive voltage 1.5-3.5 volts, current 15-18 mA, fast reaction speed, and can be operated at high frequencies. Under the same lighting effect, the power consumption is one thousandth of that of incandescent bulbs and half of that of fluorescent tubes. It is estimated in Japan that replacing half of Japan's incandescent and fluorescent lamps with LEDs that have a light efficiency twice that of fluorescent lamps can be achieved. It can save equivalent to 6 billion liters of crude oil annually. For example, in the case of bridge guardrail lights, a fluorescent lamp with the same effect is over 40 watts, while the power of each LED is only 8 watts and can be varied in seven colors.

　　3. Long service life

　　The use of electronic light field radiation for luminescence has drawbacks such as easy burning, thermal deposition, and light attenuation of the filament. Using LED lights with small size, light weight, and epoxy resin packaging, it can withstand high-strength mechanical impact and vibration, and is not easy to break. The average lifespan is 100000 hours. The service life of LED lamps can reach 5-10 years, which can greatly reduce the maintenance cost of lamps and avoid the pain of frequent lamp replacement.

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