Traditional Culture Encyclopedia - Photography major - For high scores, please consult the self-made 220V power LED lamp.
For high scores, please consult the self-made 220V power LED lamp.
The light efficiency of LED lamp is not determined by power, but mainly by its brightness.
Ordinary high-brightness LEDs are only tens of mW, and high-power LEDs are 1W, 2W, 3W and 5W. The quantity can be increased according to your own needs.
The PCB strip you mentioned is used to hold LEDs, so it can be bought and used.
LED application circuit and calculation formula of current limiting resistance;
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