Drivers and board got here today I have 2 of them up and running.. they seem to run warm not so hot I can't hold my hand on the backs of the panels but seem to toss off more heat than my purple lights...
You can possibly get some dimming from the voltage pot screw on the drivers. That may reduce the temp a bit.
I am using 4x LRS-75-24 and qb120 also (in a 3x3) and had to use the pot screw to dim the lights as they were burning my seedlings up even at nearly 3 ft from plants. I turned the screw counterclockwise slowly until the boards started to hum and then turned them back up slightly. Running around full power at whatever the LRS-75-24 is set at from the factory caused the boards to run warm to the touch but not super hot. Since I turned them down as far as possible they are now cool to the touch. Tent temps went from 77 to 72 with lights on. I can also open the tent without sunglasses now Sent from my SM-G955U using Grasscity Forum mobile app
Yea they run a bit warm but for me that is not an issue I just open a window to let cool air in the room and everybody in the tent seems very happy. If these turn out to be to much for seedlings I still have my purple lights and they work great from seed through veg. I don't plan to grow through the hot summer months when this grow is finished I will not start next grow till Sept. I am thinking of adding 2 more 120's so my fixtures will have 3 boards each total of 6 panels and have between 400 and 420W in the 3 X 3
A little late but I have been using hlg-120h-48a, I don't quite remember exact but it dims from about 120w down to 30 w
Looks good... the LRS-75-24's that I used are working great they give me max output for the 120's and plants are responding real well to them, I was looking for max watts at min $$$ and I think I have it
What is the max you are getting? So that is one driver per board?, a lot more economical than the ones I bought for mine.
I have each of my LRS 75-24's set to 24.4V which is about 68W. The LRS is really a small light driver.- fine for a single board.
Yes 1 driver per panel I got them for $16ea. with free shipping on amazon each panel with these drivers are putting out about 70W... Tbone turned me onto them and I can say they are working great
Dude! For real!!!! I just powered mine up and jeeeezzzz, they literally blinded me momentarily! I had them face up on the table after assembly and did not expect the amount of brightness they put out. Like an angel descending from heaven!