Recent content by Mardi Grass

I went with the QB132 build because it ended up being fairly cheaper for better efficiency and output. I heard bridgelux was pretty good, you just need more of them compared to F series

Do you know how low they have to be driven not to require heat sinks? And would you just mount to angle aluminum? Seems like U channel is basically as expensive as the 1" heatsinks

And unfortunately HLG doesn't have their QB132s in 3500K right now. Its either a set of 3000k or 4000k. I'm wanting it to be for full cycle growing. I know plenty of people say vegging under 3000K is fine but it seems like 3500K would be better.

Yeah I like the idea of a 5 strip build, but if i go with a 240H driver it will only give 1A/strip for a total of about 4000lm at 228.5W. The QB 132 would put out 44,800lm at 240w which is more efficient, just less spread. I could go up to a 320 for the strip build at 1.34A/strip and get about...

Or even wire 4 of them in series with an HLG 320H C1400 for more output. Not as efficient that way but its about 77% of their max current.

Either way they would be running so soft at 1A/strip I might as well just drop down to 4 strips with 1.25A/strip. It would be almost the same output. Im also starting to lean toward just getting 4 HLG QB132's because they don't need heat sinks and it would be a cheaper build with even better diodes.

I'm torn between doing a build with samsung F strips and the HLG QB132. At first I thought it would be cheaper to go with F strips, but the heatsinks are making that not the case. I'd get 48 more diodes with the F strip build but the QB v2 have the newer chips... Seems like it makes more sense...

Looks like Id be getting about 2000lm more going in series since the current would be limited in the parallel driver. Id rather not go up to a 320 driver as they're a decent bit more expensive. I know LED gardener said he likes parallel with anything over 200v but 229 isn't that much over.

Thanks you, I hand't seen that. I've decided to run 5 of the FB22B's. They have a typical voltage of 46, so would I want to get a 48V cv driver and if so the HLG-240H-48 has a max of 5a. That would be 1a per strip, but using the engine at 1a per strip they only use 45.7v. Since its a cv driver...

I've been doing a lot of reading on heatsinks for f series and I'm not sure when I need them or not. Would I need them to run 3 of the FB24B using a HLG-240H-48A? One post I read said "because the strips run at only 77% of the rated current you will need no heatsinks". What about 10 of the F562B...

Yeah Im just on fairly tight budget so these strips are the best bang for your buck, but cutting down on heatsinks might make it worth it. Do you have to put in any protection from runaway when in parallel? Also do you know why the data sheet says they have best efficacy driven the hardest? I'm...

I've been reading posts nonstop for days now. Trying to build my first set of grow lights for a 2'X4' space. First I was thinking cobs, then the HLG qb132 4 pack, and now I'm thinking of some samsung f series instead. The idea is to run 3 LT-FB24B in series using a HLG-320H-C2100. Does this seem...