What would be suffucient LED lighting for a 65g reef tank, I've been told 120w would do the trick....what you think?
I totally agree. The put off a lot of light and over a fairly large area in comparison to their size.Whats the surface area you need to cover? I feel like one 3W LED can light more than tham 10-15in2
My surface area is 48x13=480+154=624 in2 and i have 28 LEDS over it. 624/28= 22.28in2 per 3 watter. Also I have LEDs set up with 55deg lenses and they run at 50% power.
LEDs are easy to underestimate because they forget that all of the LED light energy is directed toward the tank vs a MH that emits light energy in 360. Known as an omni emitter.