new build, lights really dim and there's a slight flicker?

[wardo]

Just got finished putting together a unit of four 50 watt crees with a hlg 185h c1400b driver following the build on here. the lights come on but are really dim. the potentiometer does nothing so i took it off but that didn't effect the brightness. strangely after it's unplugged the lights stay on at the same intensity for 6 or 7 seconds.

How it's wired up:

[TEKNIK]

Best to show how you wired it all up

[wardo]

added some pics to the original post

[TEKNIK]

Can you give the model number of the Cree led you used. You did these all in series right?

[wardo]

yes, serial. cxb 3590's

[Shimbob]

Have you double checked all the polarities? + to - among the cobs, and + to + and - to - to the driver

[wardo]

yep, brown is positive... i put a mark on the port of the cobb holder closest to the + sign. double checked too tho. if any of that was backward it just wouldnt have come on right?

[TEKNIK]

Are the dim wires touching at all?

[wardo]

no... they're taped up. I think I'll just take the whole thing apart and put it back together again

[TEKNIK]

I don't have time to check the data sheet but have you added up all the voltage totals for the cobs? Apart from a dodgy driver or dodgy wiring or connectors the only thing left is to ensure that the driver matches the LED's