So, how to systematically identify the heat dissipation of LED Lights?

So, how to systematically identify the heat dissipation of LED Lights?


led strip lights, led strips,


Since we cannot directly measure the junction temperature, is there an indirect way of knowing the junction temperature? Fortunately, as the temperature of the LED junction increases, the luminous flux will decrease. Then, as long as we measure the illumination change of the Light at the same position, we can reverse the junction temperature change.

 HOW?

1, choose a place that is not disturbed by the outside light, preferably at night, turn off the other lights.

2, cold light immediately measures a position of illumination, records the reading at this time is "cold illumination".

3, Keep the Lights position and illumination unchanged, the Lights work continuously.

4, half an hour later, reads the luminance value here, note that the reading is "illumination in the hot state"

5, if the difference between the two values ​​(10 ~ 15%), the cooling system of the Light It is basically good.

6, if the two values ​​are very different (greater than 20%), the heat dissipation The system of this Light is doubtful.

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