View Single Post
Old 03-16-2009, 06:24 PM   #17 (permalink)
Dalban
Algae Grower
 
PTrader: (0/0%)
Join Date: Nov 2004
Location: Vancouver, BC
Posts: 51
Default

Quote:
Originally Posted by Hoppy View Post
My bulb needs replacing about once a year at about $30 each time, with the shipping, for a total annual savings of $44 per year.
I'm curious, why do you replace your bulb so often? Typical T5HO bulbs are rated at 20,000-30,000 hours with end-of-life lumen maintenance rated at about 95%.

I'm always keen to find factual, quantitative evidence that backs up the notion that T5 bulbs are significantly dimmer one year into their life. So far I have trouble convincing myself that this isn't a relic of the days when T12 were in vogue.
Dalban is offline   Reply With Quote