Good ?, my lights are so bright my neighbor can find his runway to land his plane at night LOL. When I build reffectors I take into count hieght and width of tank, using lay out paper to find the ending anlge of reffector. the ones I built for my tank are spider knock offs. there is no dead spots and it's hard to find places for low light corals. I have 4' break and use polished stainless steel to make these
my neighbor really does have runway in his backyard