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Mismatching between LED driver and LED lamps

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Mismatching between LED driver and LED lamps

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While selecting LED driver, sometimes may find that LED driver constant current output less than specified value and then gradually reach it after LED lamps emit heat. The reason is the number of LED lamp in series is lager than specified value. Each LED lamp forward Vf typical value is usually 3.2V while working, and 3.6V when in low temperature. Hence customer should use 3.6V if LED lamps work in Low temperature area.

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