DeLong20 New member Sep 7, 2007 #2 If they are PC's I say every 8-12 months. The sooner the better IMO. All bulbs should be replaced every year.
If they are PC's I say every 8-12 months. The sooner the better IMO. All bulbs should be replaced every year.
F fish2 New member Sep 8, 2007 #3 i try and replace bulbs every 6- to- 8 months so that i dont get to much of the red band, which can lead to bacteria out breaks
i try and replace bulbs every 6- to- 8 months so that i dont get to much of the red band, which can lead to bacteria out breaks
