Hi. I'm trying to figure out the whys of this board. It holds 12 high power led's in series. When I soldered the led's to the board and apply 18vdc, only 6 led's light up. The red traces are the power path (confirmed by meter). All of the led's work individually. Any ideas?
PS I bought these from China and there is no other data available. (at least not in English)
Thanks for any words of wisdom.
PS I bought these from China and there is no other data available. (at least not in English)
Thanks for any words of wisdom.
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