The best ways about choose LED street light
luminous efficiency
The technology is maturing, and the power LED light source is available to meet the needs of normal street lamps.General high pressure sodium lamp light efficiency is 100LM/W, commonly used high power LED is 50 to 60 LM/W, with abroad the best LED chip can reach 80 LM/W, the higher luminous efficiency, energy saving effect means the better, which is to choose one of the most important indicator of LED street lamp.However, there are no specific guidelines for leds, so there must be careful confirmation when purchasing LED street light.
light failure
Some businesses, in order to reduce costs, use a few hundred and 0.5W small power LEDs. However, the light failure of this small power LED is very serious, with only a 1000 hours of life expectancy of up to 80 per cent.As the need for long-term use, so the street light is absolutely not allowed the use of this kind of small power LED, selects the high power LED (generally refers to more than 30 w), the light failure will be much better.
lighting problems
LED street light due to the complexity of high technical content, composition and so on reasons, some high power lamp holder will weigh far more than ordinary high pressure sodium lamp, so the support for the corresponding material requirements are higher.However, some LED street light manufacturer has as much as possible to reduce the weight of the LED lamp holder, from the original single lamp holder about 30 kilograms, dropped more than 10 kilograms, weight loss and the trend of decline further.
heat dissipation
LED for semiconductor components, the wafer is affected by temperature and reduced to 30% of the initial luminous flux, will lose the meaning of lighting, or put an end to the life, the life of the high power LED street light in theory 3-50000 hours, but the premise is have good heat resistance.It is worth noting that domestic manufacturers have adopted the world-leading needle cooling technology.
The technology is maturing, and the power LED light source is available to meet the needs of normal street lamps.General high pressure sodium lamp light efficiency is 100LM/W, commonly used high power LED is 50 to 60 LM/W, with abroad the best LED chip can reach 80 LM/W, the higher luminous efficiency, energy saving effect means the better, which is to choose one of the most important indicator of LED street lamp.However, there are no specific guidelines for leds, so there must be careful confirmation when purchasing LED street light.
light failure
Some businesses, in order to reduce costs, use a few hundred and 0.5W small power LEDs. However, the light failure of this small power LED is very serious, with only a 1000 hours of life expectancy of up to 80 per cent.As the need for long-term use, so the street light is absolutely not allowed the use of this kind of small power LED, selects the high power LED (generally refers to more than 30 w), the light failure will be much better.
lighting problems
LED street light due to the complexity of high technical content, composition and so on reasons, some high power lamp holder will weigh far more than ordinary high pressure sodium lamp, so the support for the corresponding material requirements are higher.However, some LED street light manufacturer has as much as possible to reduce the weight of the LED lamp holder, from the original single lamp holder about 30 kilograms, dropped more than 10 kilograms, weight loss and the trend of decline further.
heat dissipation
LED for semiconductor components, the wafer is affected by temperature and reduced to 30% of the initial luminous flux, will lose the meaning of lighting, or put an end to the life, the life of the high power LED street light in theory 3-50000 hours, but the premise is have good heat resistance.It is worth noting that domestic manufacturers have adopted the world-leading needle cooling technology.
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