Quote:
Originally Posted by Dalban
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.
|
I use GE9325K PC bulbs, not T5. They probably don't require replacing once a year, but I have seen some data that supports a 18 month to 24 month change cycle. I figured on annual replacements to fudge the savings up a bit.