important parameters of LED lighting2013-02-28 1 Forward Current If: It refers to the positive value of forward current normal light emitting diodes when . In actual use, should be selected in 0.6 ? IFm IF less . 2 forward voltage VF: Parameters given in the table operating voltage is at a given forward current to get. Generally in the IF = 20mA when measured . Light emitting diodes in the forward voltage VF of 1.4 ~ 3V. When the outside temperature , VF decreases. 3.V...
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