LED layout

[Cal_stir]

I have 72 leds on a 48"x12" heatsink evenly spaced @ 2.5" apart and there is no disco or spotlighting effect.
I have no optics and light is 4" above the water.

P1020798.jpg

LED light.jpg

[fishay]

Good to know...the only reason I was considering clusters was to get the colors to blend well enough that theres no disco. Thanks

[Cal_stir]

in that photo the light has 36 xpg cool white and 27 xpe royal blue and 9 blue, I just popped 12 of the whites off and replaced them with xte royal blue, still no probs with colour mixing.