<a href=showthread.php?s=&postid=8905217#post8905217 target=_blank>Originally posted</a> by kjord97
I am setting up another 150 gal and going to try out T-5's on it. Compare it with my 125gal that has Metal halide.
My question ???
I want to run 8 54 watt T-5's or 5 80 watt T-5s on the system. I have read that 4 54watt T-5s is the same as having one 400 watt Metal Halide. Do you have a ballast that would run the 8 bulbs, or would i need to run to circuits, each with 4 bulbs apiece and have 2 ballast?
Do you sell the entire retrofit kits to install 8 T-5 54watt bulbs.
I came accross the following information, and I was wondering how correct it is?
T5 HO Fluorescent
*4-54W Bulbs Watts 216 Lumens 20,000 Lumens per Watt 92.6 Life Hours 20,000 Kilowatt Hours per year** 946 Bulb Replacement Cos$9-15 per bulb
Metal Halide Watts 400 Lumens 32,000 Lumens per Watt 80 Life Hours 20,000 Kilowatt Hours per year** 1,980 Bulb Replacement Cost$30-$40
* 4- 54W T5HO bulbs are equivalent to to one 400W HPS or MH bulb.
**Assumes bulbs are run 12 hours per day, 365 days per year.
hope someone can help me with the answers. thank you