jamest0o0
Chameleon Enthusiast
A T5HO is 33% more efficient, and double the wattage per foot. So its easily 4x more light/uv vs a T8, and if your t8 doesnt have a reflector(i have never seen a T5HO without one) you can get up to 10x more light vs a T8 with a normal white metal/plastic reflector. Its why no one recommends 12% T5HO's unless you have a meter.
I've been using 12% T5HO, is this bad???