garyfisher

yield was great. GPW was lower than typical but very happy with turnout. Harvested 1.5lb of trimmed cured bud per 600w light.

harvest is done and the colas were the size of 20oz pop bottles wet.

Even if you have low ceilinng (7') at 24" you dont need to grow plants larger than 5'. You can put these on the ceiling basically. They dont need much clearance or take up much vertical height. Also if you just run the 480w drivers such as the HLG 550, you can get them down to 16" at full power.

i bought more drivers now (240 true watts to power 2 boards only). This round has about a week left. Sorry about lack of pictures. I'll get them up soon.

i just switched to rockwool for the first time ever in 14 years. It's a lot cheaper than rapid rooters for me and I get the same results. Make sure the cubes stay moist. Roots within 14 days. I also use a heat mat.

theyre around 24" above the canopy and I use a light meter.

yep. We are 4 weeks into flower now with the new lights. I have 3 HLG600H kits and the above light in a 10x10 room currently. They're bright and I'm working on installing potentiometers so I can push less watts and get the lights even closer.

looks like an ad to me

You could build the older version of these HLG QB V1s for $47 each and a 240w driver($60) to push the boards at 60w. Probably wouldnt even need the heatsink. So you're talking $260 for the components plus the frame and wiring. Very cheap way to get into high end LED lighting.

Thanks, Semi. I enjoyed putting the light together and it was fairly easy. I used 40 rivets for that entire frame and a few pieces of angle alumium. If you notice in the very first post of the kits, the driver is mounted on top of the light, adding heat to the room. The light rig i just built has the driver remotely mounted outside of the insulated grow space. Eventually I'll remotely mount the drivers in the kits I built as well. These lights are bright and WILL bleach your plants white if less than 12", some run 18" but 18-24" is the closest you want to get them in flower at 150watts per quantum board. If you ran the QBs at 60w you could get them a lot closer. I'm pushing the limits of these LEDs with the highest amperage allowed.

Here is the custom jobby I built last night. 1200W beast at full power or dimmable down to 600watts. 2300 LEDs in this rig total. Covers a 4x8 really well. Might space the next build out more.

Almost as much but not quite. 270w x 4 = >1000w . Thats double the energy of my light. Double the cost. Double the heat.

Comparison is the thievery of joy.

The lights I posted are Kits with one giant heatsink rather than 4. The kits run 739 @ growerslights.com I am building my own frames with 4 separate heat sinks also and those are running me around 550$