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Ok to start off here is a picture of the led on from the plants height. I have it ten inches above the canopy. I am running each LED at 1.5A on a fixture I made myself. I have a heatsink from heatsinkusa and a 15cfm 1inch computer fan. The junction temp is 50 deg C all the time. From...

Okay here is my first update! To start I am going to tell you about my new setup just for this competition. Lights: 4 Cree CXA3050 led's Nutrients: Veg + Bloom Medium: Hempy Solo Cups I will be running my lights at 11:30 on 12:30 off because of stuff! Here we go! Welcome to the stage Maui...

I noticed you said you were also running infrared and UVB lights? What is the wattage of them? I was looking on amazon for some UVB bulbs and found a CFL at 13w and 26w. What did you go with for your area?

Are those 16oz cups?

Hey any updates? I'd like to see the area with two plants! I bet that screen is filling up!

4 regular mauwi waui germinating! Let the games begin :)

Are you vegging with 1200w? I think that might be too much light. try just a 600w or 400w whatever you have and you will see improvement :) edit: More pics!

Like a pawn shop? Ill look thanks!

I wired them both ways. Actually in series it didn't work.

Does that mean there is no way I can wire four fans to the power supply?

Is there any way to fix that?

Hi, I recently decided to build my own led. Tons of research has gotten me very far. I am currently wiring the fans to the power supply but I can't get them to work. I bought a 12v dc 2.0A power supply and four 12v dc 0.29A fans. Weird part, I wire three to the supply and it works like a...

Here it is with the fan on it! These fans really push some air at only half speed! can't wait to get the power supply and see what they can really do!

I imagine it wouldnt even turn on if the volts werent high enough

I am actually getting a 15 CFM fan for each heatsink. Do you think will be enough? http://www.allelectronics.com/make-a-store/item/CF-398/12-VDC-40MM-SQUARE-X-28MM-FAN/1.html each heatsink is 1.816 inches square! edit: My biggest worry has been the temp but its hard to test until I...

Here is my new box built specially for the CXA 3050. Each box is a 2ft square with four 1 sq ft holes netted for scrog. Walls will be construction sheeting. Now I just need my 1.5A drivers and we can start the show! edit: total cost for one box with all the bells... 400. Not bad! :)

Thanks for that supra! Well I hope my heatsinks can handle it! edit: Might want to check this link out! http://www.popsci.com/science/article/2013-04/why-your-led-bulbs-give-terrible-light

even when running at 1.5A? Do you have any efficiency numbers for the 3050 chip? edit: Do you think my Heatsink with fan will maintain a low temp for longer led life? Like 75 Tj?

bbspills what do you think about efficiency? maybe 28w of heat coming off the 3050? I bought a heatsink from heatsinkusa and a 9 cfm 1.6'' fan. I think it wil be ok. edit: Also did you space your 2 3050 12in apart on your old ds100?

Why is it that every timeI get ready to order parts for a diy led setup something badass comes out! I might go for this :) THANKS!