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Led street light mainly used in the urban expressway, trunk road, secondary road, slip road, factories, schools, gardens, residential quarters, city squares, gardens and other road lighting. How to choose a led street light is more and more important to a lot of people. Following are 4 tips which show you how to buy a led street light.

<img class="size-large wp-image-757" alt="led street light 50w" src="http://www.loveislight.com/blog/wp-content/uploads/2013/09/led-street-light-50w-647x1024.jpg" width="640" height="1012" />
led street light 50w
Take the Led street light 50w for reference.

1. Luminous efficiency

LED lighting technology matures, the power LED light source is required to meet the general street light flux. General high pressure sodium lamp luminous flux is 100LM / W, is commonly used in high-power LED 50-60LM / W, with the best LED chip abroad can reach 80LM / W, luminous efficiency is higher, which means better energy efficiency, which is Select the Led street light of the most important indicators. However, LED's standards this has not been clearly defined, so when purchasing Led street light must be carefully confirmed.

2. LED street light failure

Now some businesses, in order to reduce costs, on the use of hundreds of small 0.5W power LED. However, this low-power LED light failure is very serious, the light fades to 80% of the life of only 1000 hours. So, as long-term use of the street needs is absolutely not allowed to use such small power LED, the choice of powerful LED (30W or more generally refers to), it would be much better light fades.

3. Led street light weight problem

Led street light due to technical content, complex composition and other reasons, some of the high-power lamp will far exceed the weight of ordinary high-pressure sodium, so the corresponding support material requirements more higher. However, some manufacturers have Led street light LED lamp as much as possible to reduce the weight from the original single lamp about 30 kilograms, down more than 10 kg, weight reduction there is further downward trend.

4. Led street light heat

Because LED is a semiconductor components, and its chips affected by the temperature decreased to 30% of the initial luminous flux, illumination will lose significance, that is the end of life, in theory, high power LED street life of 3-5 million hours, but which is an important prerequisite for good heat dissipation. It is worth mentioning that the country has adopted the world's leading manufacturers of needle cooling technology.

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