120W LED Grow Light PCB Boards with LM281B+ 3000K 5000K UV and IR Full Spectrum Panel Lighting PCB Kit

Good product! I use these boards to replace boards on a few HLG lights. I haven’t performed any par test, but they seem to be working great.

The media could not be loaded. The picture says it all don't hesitate. You definitely are sleeping if you think these lights are not worth the purchase. They are worth every penny spent. People don't realize this technology will never outdated itself. If you are a DIY person like me. You enjoy every second of building your own LED. Then seeing the results after is even better.

Output of 3 panels at 340Watts, 48V, 6.7 amp is 69 PPFD umol/m2. That is not enough to grow anything. Panels state a maximum current of 2700Ma x 3=8100 Ma or 8.1 amps. Far as I can see on Amazon, you can only get power supplies for the single or dual panel requirements. 340Wx48V@8Amp is specific and would have to be custom made for the application. 3x single supplies is $180.00, 1 single and a double is $170, obscene and an end to the project.This gets a 1 star a crossed the board because the seller recommends a supply that wont outshine a candle. An outright lie that will cost the buyer money.

Lots to say about these, but in short: meanwell 240 48V, IP 68 electrical connectors, harbor freight extension cord, wago toggles, fat daddios cookie sheet, and audio wire with tinned ends.You're supposed to use 2 boards per 240W but 3 boards run @ about 53% power but you get more lumens @ 0.5W / 3V Total Luminous Flux= 288 x 81.78 lm = 23,514.24 lm. Depends on your styles, and preferences. Also helps to run cooler, and you can get away with very minimal heat sink as long as the diver remains outside the tent. The 8020 or 2020 Al extrusions are completely sufficient as suspension points and heat sinks.Lastly, careful buying used. Just got clear bag with single foam pad shipped which was pretty torn up. No cardboard box, esd, etc,...

Not bad quantum boards for the price, I built a 600w grow light with these 4 qb288 boards and 2 hlg65 v2 boards. So far I've had explosive growth! I'm running a variable voltage driver for dimming purposes and it has definitely been needed! These things are crazy bright as well. Efficiency isn't as good as the lm301h or lm301b leds but they definitely do the trick! I believe thier Efficiency is somewhere around 2.6umol/J.

Don't think there's anything to dislike about these lights great price great product great service and plants absolutely love it could notice the difference after one day of using this light and the fact that it uses less than half the power as the light I was using while being brighter makes it a win, win, win situation for me. Quick delivery and quick response on any questions 200% satisfied and will be getting more of these ASAP.

These boards are amazingly bright and at a great price. I have purchased 6 so far and plan on purchasing more to replace my old grow lights. Each board is rated at 120 watts so in the LED world they would be marketed as 1200 watt replacement.

Nor even close to old ones replacing it and then one panel went out in less then a month save ur money