I have been thinking about experimenting with LED lighting for a while. I’m pretty sure i saw quite a few of these fixtures at the swap over people’s frag tanks. Does anyone own one of these? What is your opinion? I should have asked the people with frag tanks that had them. They say it has enough power to replace a 250watt metal halide. Let me know your thoughts.
That one looks very similar to the one that Bill(billrob) has and the one that Ken(kaptKen) has.(not sure if they have the same one or not and I believe Bill has not tried more then one.
I am experimenting with many different fixtures at this point, but have trouble giving firm recommendations as results have been mixed. I currently have two different LEDs fixtures and four 54W T5 bulbs(ATI) over my 120gallon mixed reef.(my favorite tank)
Looks interesting but thats not like mine.
This is the one I have.
[quote=“mortyn02, post:1, topic:5244”]
I have been thinking about experimenting with LED lighting for a while. I’m pretty sure i saw quite a few of these fixtures at the swap over people’s frag tanks. Does anyone own one of these? What is your opinion? I should have asked the people with frag tanks that had them. They say it has enough power to replace a 250watt metal halide. Let me know your thoughts.
http://www.ebay.com/itm/120W-Aquarium-Coral-Reef-Tank-White-Blue-LED-Grow-Light-BLACK-Acquarium-LED-/200709101252?pt=LH_DefaultDomain_0&hash=item2ebb31d6c4[/quote]
dimable? i think that after spectrum, dimmability is very important!
[quote=“moliken, post:4, topic:5244”]
dimable? i think that after spectrum, dimmability is very important![/quote]
Agreed, pretty much critical. Unless like Bill you have 5’ of space above the tank and don’t mind raising it up significantly and having a lot of the light shoot out of the tank. 
LEDs are supposed to be energy efficient no reason to have 800 par on the floor or the wall.
Nope, thats not the one i just got. I got the REEFKOI Evolution 100. 100 watt, 50 x 2 watt LEDs. half 14K whites and a mix of 450 and 460 nm blues. plus it has reostats to dim either blues or whites. and 90 degree focus.
yours says about 5500 lumens at 120 watts for the LEDs. that comes to only 45 lumen per watt. pretty low rate. ive never heard of or seen the one you linked. so cant say much else.
I have one that is similiar to the one your looking at over a 28 gl seahorse tank. I don’t seeing it replacing a 250 mh lamp but, it will do a basic job of lighting the tank up.you will need separate timmers to control the blue and white leds if you want to have a ramp up and down the lights.also, the leds do not have optics, so you get alot of light spillage. overall, its a good basic light,if you want alot of special affects, go with something else.
If you run a controller why not just with some AI modules you can get a 24x24 spread from one module