LED street light failure
Date:2011-05-16 11:28
Status:Be resolved
Question:admin
me connected to the LED should go out two lines cited. Previously put in the power connected to the output voltage meter (LEDs positive and negative), then connect the power, not heat up while the LED before and immediately read the voltmeter reading, which is equivalent to the value of V1, and then wait at least 1 hour, so it has reached thermal equilibrium, and then measured again, LED voltage across the equivalent of V2. Subtract these two values, the difference obtained. Longer be removed 4m
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