how high for LEDs

[michael grady]

I just finished building a 48 inch strip with 72 LEDs. I'm mounting it over my 110 reef that I am building. What would be a good height above the water for the LEDs. 2:1 blue white ratio Cree

Also, I have lenses for the lights. Is it worth adding them?

Thanks guys,

Michael

 

[dvara78]

I have a my Maxspext G2 160W sitting 2-3" above my water - i think this may be too low though.

I also have optics on the fixture.

 

[dcruce]

From everything I've seen they recommend 12" above the water. You should get better par readings with the lenses, less spotlighting as well. Here's a test done with some optics on R2R...

http://www.reef2reef.com/forums/reef-led-lights/69720-carclo-optics-test.html">http://www.reef2reef.com/forums/reef-led-lights/69720-carclo-optics-test.html</a>

Do you have a par meter? I would be interested in what you are getting... I'm seriously considering a custom led build similar to yours. 24" headsink with 60 led's per each, same ratio except I'm looking at 12 Cree XP-G's for a high noon.

 

[hunterfreeman1]

i wouls say 8-20 inches depending on the optics