Jan 26, 2012 #1 2bafish Community Member View Badges Joined Jan 7, 2012 Messages 28 Reaction score 0 Location Canada Langley Rating - 0% 0 0 0 How do you know when to change t5 bulbs? Would a lux meter help any for this?
Jan 26, 2012 #2 EpicWin Active Member View Badges Joined Jul 8, 2011 Messages 468 Reaction score 17 Rating - 0% 0 0 0 9 months is what people say. I don't know. As they age they get dimmer and their spectrum shifts away from blue. With that info u decide when to replace
9 months is what people say. I don't know. As they age they get dimmer and their spectrum shifts away from blue. With that info u decide when to replace
