Yves17 Posted July 24, 2012 Share Posted July 24, 2012 12 LED's 60 DEGREE OPTICS TANK 20" LONG 11" TALL Link to comment
tomgndallas Posted July 25, 2012 Share Posted July 25, 2012 12 LED's 60 DEGREE OPTICS TANK 20" LONG 11" TALL i run my par bulbs with 60 optics at 9.25, and my dimmable fixture with 60 degree beam angle at around 10, maybe a little higher. Link to comment
MeepNand Posted July 25, 2012 Share Posted July 25, 2012 60 degree optics get a spread about equal to how high you place them. So, 8" above the tank=8" spread for each led. 20" long would need anywhere from 12-20 inches depending on the size of the fixture. Link to comment
Yves17 Posted July 25, 2012 Author Share Posted July 25, 2012 the fixture is like 7.8 inches or something like that... Link to comment
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