Why does my T5ho running hot?

[DrewBrees713]

I have had a Teklight T5HO 4ft 54w x 6 with no fan because their lamp output "emits very little heat" printed on the manual. It's been working flawlessly for about 1 yr. Recently it's running super hot and I can feel my room a lot warmer. Could it be time for me to change the bulbs? Or their "cool" technology is wearing out?

 

[EW_Fish]

I think every t5 fixture should have a fan. I had a 6 bulb ati fixture that ran really hot right out of the box.

 

[DrewBrees713]

I think every t5 fixture should have a fan.

Me too. But it ran cool for a full 12 months. Going to use a tiny desk fan to blow cool air over the bulbs. Hope that'd help some.

 

[EW_Fish]

Canopy or open? If canopy I would just get a clip on fan and face it toward the fixture

 

[reefndude]

try facing toward fixture, and then try facing away. I think facing away to pull the heat away from fixture and tank