Down to two lights, looking for assurance...

[midgetwaiter]

Originally Posted by fkshiu

Fluorescent BALLASTS
The Icecap 660 is a very versatile and reliable ballast. It can run T5s if you wanted and in fact will overdrive T5HOs producing more light at the cost of shorter bulb life.

Small note, URI T5 bulbs are properly designated as V-HO. They worked with Icecap to build bulbs that would last longer with their ballasts, provided adequate cooling they last a year.

[fkshiu]

Originally Posted by midgetwaiter

Small note, URI T5 bulbs are properly designated as V-HO. They worked with Icecap to build bulbs that would last longer with their ballasts, provided adequate cooling they last a year.

That is correct! The key is the active cooling , i.e. having fans blowing on the endcaps and bulbs. Having T5HOs in close proximity to high wattage MH bulbs without active cooling can really affect their output/lifespan.