Replacement Intervals for PC actinic 03

[PsychoKnight]

I know about MH bulbs, but not hearing about replacement schedules for actinic 03 PC replacements.

Whatcha recommend? They are on 8-10 hours/day.

 

[NicoleC]

About every 8-9 months, but if you are just running them for a little color, the color shift as they age may not be as important to you and you could go longer between replacements.