Quote Originally Posted by SantaMonica View Post
Welcome from Australia.

Although most China lights only actually have about 2/3 of the wattage they state, the 120w one is still way to much. You don't say how much you feed, but probably 3 to 5 cubes a day based on 22 reef fish. So although you could do a smaller screen than 10 x 12, if you use the lights you found, they would shine around (and miss) some of the screen. So 10 x 12 is fine.

The 30w one with multi LEDs works well; one on each side, about 5 inches away.

And the 30w version of the water resistant one works well; one on each side. 50w is too much, especially two of them on each side. You might have been thinking of CFL lights instead. LEDs only need half (or less) of the wattages for CFL or T5.

Thank you SM!

Yes, I forgot to mention that I feed about 4-6 cubes a day (1/3 morning and 2/3 evening).

That's really sounds good to be able to go with smaller size screen.

I might to go with the 30W multi LEDs with the increased 5 inches. Bigger distance from the acrylic sounds safer, maybe. Also, could I add a dimmel switch to adjust the intensity of the light if necessary?

The water resistant version wouldn't burn the acrylic? As you mentioned in the #48 post... "The back of the case, and the front glass, get too hot to keep your hand on. And the LED lens itself gets sizzling and will burn you."