Comprehensive DIY LED Project List

September 4, 2013

Bench testing DIY fixture. Its using the Coralux Storm and LDD5, four 1000s and one 700 for the violet channel.

I really need to tidy up the wiring.

I suspected that because the positive terminals on the LDD5 were continuous that they were common. I want to cut down on running 10 conductors to the Storm and instead use 6. But that didn't work.

Im a complete noob with PWM devices. I thought originally that the PWM signal just "told" the drivers how much current to give the drivers. But I notice something, when I am turning up the signal the LDD array whines until it hits 100%, then goes silent. I now suspect that it is just oscillating the the power on and off to the LEDs.

And that is why using a common doesn't work.

The Crees that im using are these.

http://www.newark.com/cree/cxa2520-0000-000n00r250f/led-hb-white-2741lm-screw/dp/44W6078?Ntt=44W6078

They have the lumen output and the color I want. And is only $15.

2 Cree 2520s with 2200 lumens at 500mA and about 150% at 1000mA(at 25C which these will never run at)

20 RBs

4 Cool Blues

4 Cyan

12 varied Violets

They array chips virtually destroys the strip club effect. 5here is more shadow difference from the two arrays themselves; but no different than a multi MH setup.

Subjectively only, when all the channels are at 100% the visual color is somewhere between a 12,000 and 14,000K light with a faint purplish cast. Thats almost exactly what I was hoping for.

next build will have a few more RBs and more Violets; for the display tank. I was thinking about a Hydra over that, but I suspect that the PAR will be too low for my needs.

September 27, 2013

Hi, maybe you can add my project http://www.nano-reef.com/topic/321359-diy-led-hood-and-light-finally-done/.

I plan to do a 2 T5 upgrade this weekend, so when I finish it, i will post new pictures as well.

Thank you.

Kind Regards,

Vlatko

October 13, 2013

Any suggestions on a Retrofit for a Stock JBJ 28gal LED hood? This is the stock hood..

25x1watt (14k) Daylights

4x0.5 watt(465nm) moonlights

ANY suggestions would be GREATLY appreciated

April 13, 2014

Anyone looking for LED lights for scrubbers or fuge's, search for outdoor signage LEDs. They have all-red ones (for red sign letters) which peel and stick on, and are waterproof, and just need a driver.