t5 bulb advice

[MPISCIOTTI]

how long do t5 bulbs last .

 

[Tonyscoots84]

9 to 12 months if in a good fixture when cooled correctly

 

[KingLurker]

I would change between 6 -8 months

 

[KathyC]

9 to 12 months if in a good fixture when cooled correctly

+1

 

[petraio]

I have been running on ati fixture 6 blue bulbs after 6 months entering the 7th intensity is down some corals start to loose some purple hot pink tips ! so would change them at 6-8 months especially the blue bulbs! or actinic!

 

[MPISCIOTTI]

running 6 buld tek light. bulbs were installed mid jan when i bought the new fixture .

 

[mbg75]

Uncooled fixture par starts dropping as early as 4 months.
Properly Cooled can last much longer.

But either way. The spectrum shifts around 10 months.