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Ok, I built a LM561C S6 PCB 3500k with 672 diodes. According to the samsung calculator I was 170 lm/w at 300 watts but I honestly only ran the board up to 280watts or 171 lm/w. I was very surprised how well the lights did over a 5x10 grow, I and many people that saw my site in person felt the...

Hello, I don't know how to search for what I'm looking for on these forums, so is there a "Digital Potentiometer" that shows watts being used that can also be attached to a meanwell diver? I feel like I have seen a few people add in a digital watt screen to there light builds. If you know and...

I'm not really after making grow logs as for some reason it's just not interesting to me. When I started doing LED builds one thing I wanted to see was 'can they finish" and also wanted to know what it took to compete with a 1000watt HPS, nanolux in my case. I have a few grower friends and...

Hello everyone! First I'd like to thank so many people on these forums that give out advice and help to anyone who asks. I learned a lot by being here and still have a long ways to go. I built a 320watt possible light but I built it for a reason. The actual draw from the wall says 320 watts...

Hello, I built a PCB with 672 LM561C S6 bin chips 3500k, when I used the Samsung calculator is said at around 1500mA I would be sitting at aprox 300 watts. My PCB is 56 chips long in series and 12 rows wide in parallel. The light turns on fine but at 300 watts I'm seeing 2.7 amps off the...

I'm looking to mess around and build my own light. Ok, so I am admittedly not the best at figuring this stuff out, but I have looked for the information myself. I can't seem to find out the volts per Samsung 561c s6 chips are, and maybe it's because I don't understand. Basically I'm looking to...

Hello, I have built 2 led lights in the past and now am building out a bunch more for my grow. I built a veg light with CXB3070's bd 5000k bin and the driver is Meanwell hlg-240H-C1750A and with 4 cobs I see a draw from the wall of 150watts or more and the cobs start to smoke. I have 2 fans on...