I'm using the superleds in a cabinet. I've tested other LEDs and these are the best by far. Here is the thread:
http://www.420magazine.com/forums/ca...et-update.html
Potency and overall quality is fine, even with crappy LEDs, that's more about genetics. What is an issue is yield and the flowering time required.
My results:
led plant bar 5 - don't work and cost too much. They are good for cloning, but still too expensive
grow with leds spot lights - basically work but yield isn't great.
superled - works great
These are very new products, the prices will be coming down....