Voltage requirements for LED lamp beads
Nominal 3V LED lamp beads, in fact, different colors have different requirements for current, yellow requires the smallest current, followed by red, green, white, and blue. Too much current will burn the wick.
Using a 2.4V rechargeable battery, the yellow is easy to burn, because even if the voltage is not large, but the current is too large, it will still burn at will.
When using a button battery, although the button battery voltage is 3V, but because the button battery discharge current is very small, the 3V LED lamp beads will not be burned.
Therefore, when using LED lamp beads, you should choose a suitable power supply, pay attention to the voltage and current. When choosing a power supply, if it does not meet the rated requirements of the LED lamp beads, the circuit needs to be improved, and the common resistance is added!
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