Lighting Poll

[Doug]

Comparison is actually hard to do without using some measuring device as Steve mentioned. I believe the thread on Rc Chad mentioned, does have lots of par measures.

I will agree with Chad, that my 4 T-5,s are brighter than my two 175w halides. No disputing that. What they will measure at the tanks bottom is another question.

Then again, I,m comparing with 14K 175w bulbs. If I used the new Iwasaki 14K bulb, I would assume the halides would be brighter. So there,s the problem.

My friends 250w 14K halides is not as bright as all his T-5,s. A pair of 400w 14K,s are a bit brighter but throw a pair of 65K Iwasaki,s on and wholley mackeral.