Well, if you figure 10 hours a day, that's 1000 days. ~3 years? But what is 10,000 hours? MTBF?Featherfin said:When I looked into buying GE Aqua Ray 55 watt 9325 it said they were good for 10,000 hours. I never figured out the = days equation.
I'm getting there, I haven't bought the setup yet but I really want to try MH lights.JanS said:If you're talking about CF tubes you can double the replacement recommendation to 12 months.
Did you wind up going with the MH lighting? IF you did, it's probably entirely different again.