9 90galguy Member Market Messages 438 Reaction score 0 Feb 22, 2013 #1 I've read many different opinions on the life span of T5 bulbs. What's your opinion?
porpoiseaquatics Active Member Market Messages 2,789 Reaction score 3 Location Johns Creek GA Feb 22, 2013 #2 Most people change them annually. Honestly, they begin to lose spectrum after just 3 months. Some won't make it a full year. It really depends on the run hours.
Most people change them annually. Honestly, they begin to lose spectrum after just 3 months. Some won't make it a full year. It really depends on the run hours.
reeferman Member Supporting Messages 872 Reaction score 12 Location Augusta,GA/Oak Ridge TN Feb 22, 2013 #3 when i ran t5s,i changed every 9 months