Here is someone else review on the same 24" fixture and he indicates "spotlight" effect.
I wonder if this could be the way these fixtures assembled? meaning if the led sits closer to the lens then it will be "wider angle" if led sits further away from the lens then it will be narrower angle and thus will produce spotlight effect.
http://www.aquatraders.com/EVO-24-LE...ht-p/56232.htm
Good for the price May 16, 2012
Reviewer: Anonymous Person from Texas
Got this in today. First, I'll say that Aquatraders has AWESOME shipping. Tracking numbers come quickly and the product does too! Zero complaints there. Well packaged!
I own this and several other products, but I would say that the differences between this and BeamsWork Reef Bright LED Light Fixture 24" are minimal. I was expecting a lot more brightness (appearance) and lumens (measured) from this unit. Not so much in reality.
I'd get the Reef Bright BeamsWork unit from here instead. The visual is about the same and this unit has a bit more 'spotlighting' effect.
Prices are similar so no worries. Good unit, packed well, just not optimal for my use. My recommendation would be to go for the other unit (BeamsWork 1W LED) offered here instead. I still would be hesitant to rate either for reef tanks. I'm basing this rating and opinion on my FW planted usage. Looks great here. Didn't like the look on my reef tank. Sticking with T5 there for now.....