What are the factors affect the LED street lamp test results?

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the combination of LED technology and road lights, road lighting towards a new stage of development. LED street lamp has become the focus of the street lamp manufacturers r&d and innovation, and the LED street lamp should be tested before the factory, after qualified to flow to the market. But the LED street lamp test result is affected by many factors, sometimes subtle factors can also affect the overall results. Small make up today will tell you about what are the factors affect the LED street lamp test results.

temperature, temperature factors will of luminous flux of LED light source chip and drive circuit output current. Generally larger influence on the flux LED chip, driver circuit output current.

2, test equipment of precision test equipment accuracy including spectral matching error and parameters such as temperature coefficient, these will affect the LED street lamp luminous flux test results. Under normal operation of test equipment accuracy, to ensure that the flux in the error. Three, the influence of the stray light

the influence of stray light. Stray light including cars on the road lighting, the interference of adjacent street light ray radiation and other light source on the side of the road, street lamps light source on other objects reflected light interference, testing should be to block the effects of stray light.

4, environmental pollution factors the influence of environmental pollution. On the surface of the pollution will have a big impact, the result of the test error magnitude can achieve ~ %, especially some out smooth and do some secondary optical lens on the surface of the product, with concave and convex structure, shelter evil people and practices easily and do not facilitate cleaning and this will seriously affect the LED street lamp luminous flux and further affect the light distribution.

the above is the factors influencing the testing results of LED street lamp, street lamp factory testing should not only pay attention to these factors, ensure the accuracy of the test results, also want to learn to skillfully to prevent these factors affect the testing result. So how should prevent?

. Accuracy of measurement should be at least better than %, need to choose higher standards of testing instruments;

. Must be controlled or compensate the influence of temperature, the test period the change of environmental temperature is less than the best ℃;

. Light collection should avoid the interference of all kinds of stray light,

. Must consider the LED lamps and lanterns of surface contamination of the serious influence of the test. If the LED street lamp is installed in summer, winter to metering failure, the effect will be better.

the small make up not only want to say is street lamp manufacturer must complete the detection of LED street light before they leave the factory, to do well the LED street light products quality, the high with high technological requirements to make the LED street light, the pursuit of product quality, believe the LED street lamp is the consumer favorite.