Mh Vs. T5

[bang guy]

Originally Posted by mbrennan
I have been told that though the T5's are 320 watts they generate 92.6 Lumens per Watt compared to my current bulb configuration of 200 watts at 55 Lumens per Watt. Thats 29,632 lumens for the T5 to 11,000 lumens for my current rig, almost three times the amount of light.
That's 3 times the number of lumens, it doesn't mean it's more light. Theoretically it could even be less light.

 

[mbrennan]

Whatever ... It's better than what I got now ...
From Wikepedia
If a light source emits one candela of luminous intensity into a solid angle of one steradian, the total luminous flux emitted into that solid angle is one lumen. Alternatively, an isotropic one-candela light source emits a total luminous flux of exactly 4π lumens. The lumen can be thought of casually as a measure of the total "amount" of visible light emitted.
A standard 100 watt incandescent light bulb emits approximately 1700 lumens.

 

[bang guy]

Wikepedia is incorrect if the reference is for photosynthetic light.
I'm sure you're new fixture is a lot better than the old. I just didn't want everyone thinking you're getting 3X the light.

 

[fishieness]

Originally Posted by Bang Guy
Wikepedia is incorrect if the reference is for photosynthetic light.
I'm sure you're new fixture is a lot better than the old. I just didn't want everyone thinking you're getting 3X the light.
a good point to make bang. however, since he doesnt have corals, then all he wants is more visible lighting, he doesnt care about photysynthetic light. But i can see wher eyou are coming form. it is a very valid point and a good thing to point out to anyone reading this. thanks :happyfish

 

[fishcake]

IN the summer, I run Mh for 8 hrs a day, 10 hrs for the t5.
I run my a/c and my temp in tank never fluxuates more than 2 degrees.
It usually has a 1 degree swing and i don't use a chiller.
In the winter.. i just use a fan.