Led Combo Question

[emerick79]

Hey everyone! I want to get the 18" Drilled and Tapped Heatsink from rapidled. It holds 9 Led's in a single row. so what combination do you think would be best? I was thinking 5 RB and 4 CW. What do you think?

 

Thanks,

Sean

[emerick79]

Bump for the day people!

[Milad LEDGroupBuy.com]

What is the dimensions of your tank and what do you want to keep?

[emerick79]

Footprint of the tank is 24"X8". I figured the one row will cover this becuase i dont need all 8" width of the tank to be lit. want to keep mostly softies. not really sps but maybe in the future. i just wanted to know what kind of color temp the 5:4 RB:CW will give me. or if i should go NW instead of CW or a combo.

 

Thanks,

Sean

[jedimasterben]

Go with neutral white. Don't touch cool white if you're planning on having corals. Having them be spaced out in s a single row will really do nothing for you besides give you color banding, aka disco. Keep one neutral white and two royal blue stars touching, or better yet, get the three of them on one star. Use 3-4x NW and 6-8x RB.

[emerick79]

that sounds like a better plan. i will go with the 3-ups how many should i get for my setup?

[jedimasterben]

that sounds like a better plan. i will go with the 3-ups how many should i get for my setup?

3-4x.

[emerick79]

how much spread is there on the 3 up? if i do three do you think i will have any darkspots? im just worried about the spread of it because it will only be a about 4-5" off of the water line and it is only a 9" high tank.

[jedimasterben]

how much spread is there on the 3 up? if i do three do you think i will have any darkspots? im just worried about the spread of it because it will only be a about 4-5" off of the water line and it is only a 9" high tank.

3x would be fine, I would hang them 8-12" though. Not necessarily for spread, but just to get them physically away from the water.

 

The spread of any LED without optics is 120-140 degrees.