Quote Originally Posted by Weezard
You show me yours, an' I'll show ya mine.



Aloha, Pop

The 5 Watt LEDs;
[attachment=o264090]
Grow decent bud;
[attachment=o264089]
But the 15W. leds are easy to construct.
[attachment=o264091]

However, If you wish to match a 600W. HPS, you will need at least 50 of the 5 Watters, or 16. of the 15W. emitters.
And the reds should be mostly 660nm. if you want fat colas on dem 'maters.

Jus' my experience, YMMV.

If you DIY, please start a thread, I'll be happy to kibbitz if ya let me watch.

L8r
Weezard
Beautiful lights W! I love it! How many lumens you throwing out with that 15w array? Whats your viewing angle on those? I was curious if the typical 30 or 45 degree viewing angles worked ok for our application. Price wise, I'm thinking what... about 2-3 times more than a typical HID setup with about 18x the lifetime and 1/10th the power requirements?

Quote Originally Posted by jaydee84
i have also built my own led grow light will post up some pictures bit later i used 150 super bright 5mm red led's i run them in chains of six per 1ohm resister then divided them in to two chains of 75 for maximum power and no power lose running off 12 volt 2000ma... using a pre drilled matrix pcb board to mount led's on.. i found this is really good for promoting root growth in cuttings/clones i was lucky as i was given a bag of 180 red LED's

use the best led's you can get (for your money)as the cheaper one's like they use in the ufo grow lights just really not that great especially if you want to grow more than 1 plant....look out for the post later i will call it (pic's of home made led grow light) i will take some nice close ups of the wireing and the led's
and yours Jaydee sounds like you definitely did your homework in designing the circuit. I will be very interested to see how you got this all wired up. I am surprised about the 1 ohm resistors though... seems like you would be pushing a bit more current than the 30ma or so that the LEDs need... but maybe yours have a higher requirement. I am very curious, but I bet they are shining very brightly! I still have a large bag of at least 100 LEDs sitting here. I think I need to put this on my list of things to do again. I have a little array I built breadboard style with about 40 LEDs on it... that sucker is quite bright when you get at the right angle. My plan a while back was to mount these around the edges of my T5 florescent array and supplement the 6500k lights.

Emmie