Quantum boards ... QB 304 S5 bin ( OG boards 4 year old ) with Citize COB ( 3500K )
These were some of the first offerings from HLG .... I jumped on board when they were just being introduced.
I run perpetual grows and these have been running none stop
SINCE I built that rig in 2015 . Those COBS were actually purchased from HLG when they “ used “ to sell COBS on their site. I have been touching base with
@robincnn and
@Stephenj37826 thruout the past few years , even testing proto boards , so I have great respect for their gear. These S5 bin leds have been doing well , no dim on any string , manageable temps and awesome results.
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Power has been upgraded since original build , now I remote mounted 2 ) 240w meanwell B type ( pot dimmed for each set of 2 boards parallel ) . The cool thing is when I bought these 4 boards they were all Vf matched so I can configure all 4 in series or parallel or by sets of 2 . I do have the original Slate 1 heatsinks so I have to supplement active cooling hence the clip fan for power up. COBS are powered at 120w and no longer dimmed ( leads open ) .
Current power is about 420w ( 300w at boards ) with the 120w cobs in a 3x3. I actually like running even softer at times as to control stress. I love them.
Temps are ambient room temps ( 76 - 81 ) with or without added oscillating fan. Cali temps . Height about 18” . Any younger plants start “ below “ canopy at about 22” to 24” until they get their legs and then on risers to match canopy. 3500k is the best to control
node spacing , and am growing a comparative grow under QB96s elites and they are 3000k with red 660 ( better flower ).
No humidifier, No a/c , No CO2 ....
One MOD tho , is the Mylar masking to the inside of my tents ..... much better use of light , less loss.
Here is why I believe in these boards ..... This was another rig I built from an idea by
@Growmau5 modifying an old blurple panel.
It was a mars hydro 600 white ( classic ) that I gutted and replaced with One QB 304 and one of the on board drivers. Gave it a rustoleum hammered finish from a rattle can and it was reborn ! It’s even sporting the original sticker from the board in 2015 that I put on the outside.
In same 3x3 ..... at a lousy
50watts total , I grew 4 plants ! ...... Nobody can tell me these boards don’t do it’s job !
Look at the operating temps .... I reused the on board fan cooling added a few more vent holes and that’s it.
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Bottom line is I’m sure any setup / lights will work even outdoor.
