power supply

Hey guys, I've been eyeing these CyberPower UPS Towers for a while now (1500VA/1000W or the 1500VA/900W) and I almost bought one last night but I stopped myself. Does anyone run their tent through one of these already? How long can you run lights, a humidifier and a wall fan on one of these? Are...

i decided to put this here rather than create what might be considered a redundant question in the LED section. I just bought 2 full spectrum 100w COBs from ebay you can search under "100w full spectrum COB" and look for those from china costing around 16USD and i have been trying to figure...

Okay I saw one of these units a year or so back and now cannot find one to save my life, can anyone clue me in on this. Basically its a panel that you plug into your standard 220v dryer/stove service and the panel has something like 8 x 110v standard three prong plugs on it. Has a breaker on...

Hey everyone, I'm building a grow light using monos, Before anyone else tells me I should use COBs, I was not aware of them pre me buying these mono diodes. I will be incorporating some 3590s or 3070s on my light but for now I want to talk about a unit with just Monos. I just want to check I...

After multiple searches on RIU and the web, I need to call upon your help since I can't find answers. How do I run LED's of differing voltage on a single power supply? I understand that I need to add LED voltages in series together to calculate the voltage needed from a power supply. Do I do...

Hello all and thanks for stopping in. I've been reading on do it yourself COB LED grow lights for the better part of two days now and have been trying to piece together exactly what to order for both a 4' x 8' flowering room and a 4' x 4' vegetative room. I'm looking to completely ditch my HID...

These seem cheap? Like 600w driver is 60 bucks. Is there something wrong with them? And what are the posts on the front of these?

I noticed today a couple Hewitt Packard printer power supplies that read 32v output and I am wondering if it would be a good idea to run Cree COBs with it. Would buying meanwell drivers be worth it if I already have these? Can someone help me understand the downfall to using these compared to...