LED is now known as the fourth generation light source, high power LED is mainly manifested in LED flood light that used for outdoor lighting,which has many advantages compared with conventional light sources. 1 LED lamps with high luminous efficiency The current mainstream commercial power of LED light source has reached 107Lm / W, it has exceeded the fluorescent (70Lm / W) and low-power high-pressure sodium (90Lm / W); conventional fluorescent and HID lamps (high pressure sodium, metal halide, mercury lights) are 360 ??degrees direction light, especially in outdoor lighting such as street lighting, we have to use emitter to take advantage of the light emitted upward, this approach makes that it is difficult to break 78% for the light effect of the traditional lighting, while lamps that adopt LED light source can be refracted secondary light in the way of using the prism so that it is almost equal to the optical system 90% of efficiency. 2 LED lamps with more reasonable distribution of light LED size is very small, the design can be regarded as a point source, which makes the optical designer can design reasonable light shapes for the most appropriate occasions, such as close to the rectangles light is available for road lighting, so that the road gain uniform illumination . 3 LED lighting has more energy efficient This is the first performance of the LED lamps with high light efficiency and rational light; due to electrical characteristics of the LED light source, which can operate at very smooth power change intervals, such as Cree's Xlamp XRE-Q4 LED can work stably at 100mA ~ 1000mA at junction temperature below 85 ? , power can be adjusted between 0.27W ~ 3.5W, which allows us to easily follow the relevant provisions of the national standard power sub-period adjustments. 4 LED lamps live longer the average life of LED light source is> 50,000 hours, the life can be further extended thanks to good heat dissipation, which is 10 times longer than the energy-saving lamp life, 5 times than high quality HID lamps. 5 LED lamps have better visual experience LED lamps emit light that is in the blue scale,some of the traditional outdoor lighting (the most common are high-pressure sodium lamps) are not available, biological studies have shown that the increase in blue component can effectively suppress melatonin secretion, so as to reduce body fatigue, the effect become more pronounced in places that long-term uses artificial lighting (such as tunnels, underground parking, etc.) 6 LED lamps is safer LED work under the condition of low voltage DC operating, and job stability is low, which is not available in HID lamps, it can be operated in the more suitable temperature than traditional lamps, electrical index sensitive areas (such as gas stations, chemical industrial zone). 7 LED lamps are more environmentally friendly It is no longer contains mercury harmful substances the majority of the traditional lamp (using fluorescent lamps, mercury lamps, sodium lamps, metal halide lamps) contain, nor produce environmentally harmful ultraviolet rays,it is a veritable green lamps. Of course, what the most prominent feature of the LED light is the energy saving, substituting for traditional fluorescent lighting just around the corner, Shenzhen Li Sida lighting use the core LED technology, The integration of product design and product application environment is intended to brought out the most affordable LED lighting that in line with our needs.
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luminous efficiency, LED light, LED flood light, light efficiency, LED light source, outdoor lighting,
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