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Well, this is embarassing. I tightened down the screws on all the holders, and now the flickering is gone. Guess KISS is good advice for everything. That said, I think over-voltage protection is still on, and that there may be a problem with the dimming circuit. Would a multimeter help me in...

Yeah that figures. I wasn't really sure what those were for. I think I'll start out by doing a full reassembly. I'd feel pretty dumb spending any more money on this if it's just a matter of doing a better job of mounting them. If that doesn't do the trick, I'll grab a multimeter and keep at it.

Yeah this seems like a very good idea. By pads do you mean the thermal pads? How would I go about removing them, or smoothing them out? Would I be better off removing them and using a good thermal paste? And what do you mean by flux cap on the solder? I didn't solder anything on the chips...

Solid wire, 20 AWG, which should be perfect (and sits perfectly snug) with an Ideal holder. I did run some stranded wire through two of the chips for the first week or two though, without tinning them. Could that have something to do with it? Tiny strands of copper left over in the holder...

Holders. How would I go about checking this?

Yeah, I've done this. Right now the cable is just snipped straight, so the wires can't touch, but the last time around I had them separated. Still flickering.

Also I just checked and the light is currently flickering. Not blinking (not turning off, that is), just kind of moving up and down in intensity. Doesn't seem to be on any particular time table.

They are in series and wired correctly. The AC side is wired correctly too (I think; ground to ground, N to N, L to L). I'll get the multimeter and check. The new pots I got are 100k 1/2W, the original is 100k not sure about the other specs.

Haven't yet, no, but it's definitely not the full 250. That much is clear to the naked eye. I'll put one on the shopping list. Yeah I'm really regretting not going with the Veros, which fit on this driver beautifully. Whatever I saved on the 1212s I've already spent on troubleshooting. But at...

OH SHIT I've been trying to figure out a cheap table - this is perfect. Love it!

So a little over a month ago I finally decided to start my first grow, and also to build my first led light. After some (not enough, apparently) research, I went for 5x1212, on a HLG-240h-1400b, figuring they should just fit in it. Ordered via kingbrite. For the first week or so, everything was...

blurple is for fucking

i knew it

the manayek can't win forever.

he may have been kidding

ok so right now i'm thinking i might go with 4*1212@1050. this leaves about 44 volts to spare on the driver, is that a big problem?

lol@have the nerve to talk shit. did he not OBEY YOUR AUTHORITAHHHH!? jesus christ man i'm new here and everything but this is literally a forum on the internet for people who like to grow a plant that makes them giggle at the fridge and think family guy is still funny. think some of y'all are...

I mean the 240 would work. If you're American this might not help at all, but it's probably worth it to wait and see what kind of voltage the ELG-C200 runs.

Looking at Citizen's simulator (it's up on their website and it's around here somewhere too), @1400mah the 1212 pulls 36.6, which puts it just over the 185h-c1400's 143v maximum. I'm looking at a similar build.

Hi guys, new here. Really enjoying all the great information. I'm getting ready to do my first grow in a month or so in a hot country with a hyperactive police force, and I'm planning to use COB lighting for temps/bills/thrill of the build/etc. Anyone have any experience running 4*1212 on a...