Its a little bit of light, about 160 of t5's 220 of VHO's and 350 of MH. I have a fiji purple and a coral light on the t5's, a Super actinic and actinic whiteon the VHO's. The 175's are Iwasaki 15k's. I love these bulbs, they are very crisp. We are going to keep a mixed reef of sps up high. and...