Par 38 LED bulbs
 

has anyone ever used these to light larger tanks?

i mostly see them used for nano tanks, but would it be ok to use 8-10 of these to light a 180 gallon reef tank?

THere's a 200gal on RC with them, Beeker's. He's got 16, they look pretty spot-lightish in the first few pics, but later he blends them well and has some SPS growing.

Ive come across a few build threads now.... Still looking for the selling post lol....

Beeker's reef with par 38 looks nice to me.

Well the new ones with the 80 degree optics seem to blend pretty well