So I took advantage of the Black Friday deal. Ordered LEDs, drivers, heatsinks, etc from multiple vendors. Here is the mock up idea of my LED light fixture. Quarter: Cool White Dime: Royal Blue Nickel: Neutral White Marked quarter: Blue Penny: UV Marked nickel: Turquoise Cool white (Cree XP) x 12 Royal Blue (Cree XP) x 12 Neutral White (Cree XP) x 12 Blue (Cree XP) x 6 420nm UV x 6 398nm UV x 8 Turquoise x 4 All 3 watts, total of 60 LEDs for my 90 gallon (48x18x25) mixed reef. Here are the driver channels: Meanwell LPC-35-700 (700mA constant) 398nm UV x6 420nm UV x6 LPC-35-700 (700mA constant) [STRIKE]RB x6[/STRIKE] B x6 Turquoise x4 398nm UV x2 Meanwell ELN-60-48D (1.3A dim) NW x12 ELN-60-48D (1.3A dim) CW x12 ELN-60-48D (1.0A dim) RB x[STRIKE]6[/STRIKE] 12 [STRIKE]B x6[/STRIKE] The size of the heatsink is 5.9x16", I will connect two of them with thin long aluminum plates. Make it look like one long light fixture. Still waiting for all the parts to arrive, just wanted to pick your brains!