Analysis on the advantages of the most popular new

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Advantages analysis of new lamps

led has been called the fourth generation light source. High power LED has many advantages compared with traditional light sources in outdoor lighting

led lamps have more reasonable light distribution

led is very small in size and can be regarded as a point light source in the design, which enables optical designers to design the most reasonable light distribution shape for corresponding occasions. For example, for road lighting, we can obtain a rectangular light spot that is very helpful to our R & D project, so as to provide uniform illumination for the road

led lamps are more energy-saving

this is firstly reflected in the high luminous efficiency and reasonable light distribution of LED lamps; Due to the electrical characteristics of the LED light source, it can work stably in a large power variation range. For example, when the junction temperature of Cree's XLamp xre-q4 LED is lower than 85 ℃, it can work stably in 100ma-1000ma, and the power can be adjusted between 0.27w-3.5w, which makes it convenient for us to adjust the power by time according to the relevant provisions in the national standards

led lamps and lanterns are more environmentally friendly.

led lamps and lanterns no longer contain the harmful substance mercury contained in most traditional lamps and lanterns (lamps using fluorescent lamps, mercury lamps, sodium lamps and metal halide lamps), nor produce ultraviolet rays harmful to the environment. They are truly green lamps and lanterns

led lamps have high luminous efficiency

the current mainstream commercialized high-power LED has reached 107lm/w by 2022, which has surpassed the fluorescent lamp (70lm/w) and low-power high-pressure sodium lamp (90lm/w); Both traditional fluorescent lamps and HID light sources (high-pressure sodium lamps, metal halide lamps, mercury lamps) emit light in the 360 ° direction. In outdoor lighting, especially road lighting, we have to use external emitters to make use of their upward emitted light. This way makes it difficult for the light efficiency of traditional lamps to break through the visible light of 78% in each device discussed next. Lamps using LED light sources can use prism refraction for secondary light distribution, The efficiency of the optical system is close to 90%

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