this post was submitted on 13 Jun 2023
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Triple trouble - emitters not equally bright (lemmy.world)
submitted 1 year ago by toadiesss@lemmy.world to c/flashlight@lemmy.world
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Hi All,

I recently built my first 2x S2+ triples with KD SST20 MCPCBs and Convoy 5A drivers. On one of them I noticed, when at 1%, 1 emitter is noticeably dimmer than the other 2. My second triple I changed the sense resistor to provide slightly more amps and that one is fine.

Anyone experienced this? Could it be a bad mcpcb, driver/level issue?

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[–] Adair21@lemmy.world 1 points 1 year ago

It could be a bad reflow, but it's common for one to be brighter at moonlight because of forward voltage tolerances