Search found 98 matches

by DaveJonesFan
Wed Jul 11, 2018 7:54 am
Forum: Boards
Topic: Which driver ‘drivers would you recommend for 6 QB288 V2 quantum boards?
Replies: 15
Views: 3281

Re: Which driver ‘drivers would you recommend for 6 QB288 V2 quantum boards?

Just ordered some triple V2 setups and grabbed the HLG320-C2100B based on voltage data and reassurances in LEDG's write up on the new boards. Should be perfect on paper but no idea why HLG is still pushing the 1750 when they push the 2100's for all the other offerings, and they make a point of claim...
by DaveJonesFan
Wed Jul 11, 2018 7:37 am
Forum: Boards
Topic: Is wiring these Chinese QB288's in series even possible?
Replies: 4
Views: 1285

Re: Is wiring these Chinese QB288's in series even possible?

Yeah if they can supply you with the board's specs so you know how it's solder pads match up with the internal wiring and all that's probably best. I was working off the assumption that you could remove the soldered wires and get back to a clean board, and the assumption that all the positive and ne...
by DaveJonesFan
Sat Jul 07, 2018 6:13 am
Forum: Boards
Topic: Is wiring these Chinese QB288's in series even possible?
Replies: 4
Views: 1285

Re: Is wiring these Chinese QB288's in series even possible?

Hey, looks like a bit of a mess of the wiring and labeling of - and + terminals. Hard to decipher right off, but with some time and effort and probably a multimeter the boards could hopefully be made sense of. One thing I notice right off is the way the qb288 boards are usually wired in series is on...
by DaveJonesFan
Thu Jul 05, 2018 5:57 am
Forum: Boards
Topic: 3x QB120 on a HLG-150H-48A
Replies: 5
Views: 779

Re: 3x QB120 on a HLG-150H-48A

Unfortunately the driver and number and type of boards you are attempting to run do not work well together. An HLG-150H-24A would have been the right match for wiring all three boards in parallel. Best option with what you have may be to wire 2 of the boards to the driver in series. Driver would giv...
by DaveJonesFan
Tue Jul 03, 2018 4:13 am
Forum: COBs & Other LEDs
Topic: Does it matter how thick the thermal pads are?
Replies: 2
Views: 660

Re: Does it matter how thick the thermal pads are?

Check the thermal conductivity of the pads if you can. Should be in watts per meter-kelvin.

Usually you would want to tighten down onto the pads well in either case to create a bit of pressure on the pads.
by DaveJonesFan
Sun Jul 01, 2018 3:29 am
Forum: Strips
Topic: EB Gen 2
Replies: 4
Views: 1175

Re: EB Gen 2

Thanks for the help on this one. Quick pic of the final light I put together in the top of a 48" wide wire metal shelving rack for veg space. Light assembly: Meanwell HLG-185H-C1050B (~168 watts + max in this serial configuration) RapidLED cased potentiometer (looking into whether these are ideal? S...
by DaveJonesFan
Sun Dec 31, 2017 11:06 am
Forum: Strips
Topic: EB Gen 2
Replies: 4
Views: 1175

Re: EB Gen 2

Couldn't sleep so then was thinking about doing the thing as 3 groups of 2 strips, so wire each group of two in parallel then series that together to get the 111-130.5V range within the HLG 185-C1400's window, and then I'll be down at .35-.7A adjustmentish window per strip. Will I be getting efficac...
by DaveJonesFan
Sun Dec 31, 2017 6:22 am
Forum: Strips
Topic: EB Gen 2
Replies: 4
Views: 1175

EB Gen 2

I'm looking at building a 4 strip build of 4 foot EB Gen 2 strips. With the 1 footers at ~19.5v the 20v meanwell constant voltage drivers match up well, but if I want to run these (4) footers in parallel and hopefully adjustable as low as possible and up to about 75% at max. Would one of the 42v con...