I've been running my DIY effort for just over 2 years now. There have been modifications & upgrades but nothing major. I've used 10 watt multi-chip LEDs mounted on 3 rails in a wooden frame. Combination of 10,000K, 7,000K White and Blue & Royal Blue LEDs controlled by manual dimmers & timers.
http://www.canreef.com/vbulletin/sho...9&postcount=47
The link at the bottom of any of my posts will take you to my build thread. It's only 3 pages on my laptop, not sure how many that translates to on a smart phone. Depends on your forum options. Post count is 93 atm.