Anyone use or-u120 led's

[jpond83]

I'm getting a oceanrevive u120 on Monday to use over my 20 g long. Does anyone have any experience with these? How high should I mount it? I'm switching from current USA LEDs. How much should I dim it to start off?

[kkiel02]

I've never heard of them but started my radions about 12" above water and at 50%.