1stymer Well-Known Member Jul 5, 2007 #1 I have a 400 w mh light and I wanna know it there is some kind of lumans meter? this light I have has been running 10 hours a day for the last 6 months. does it need to be replaced?
I have a 400 w mh light and I wanna know it there is some kind of lumans meter? this light I have has been running 10 hours a day for the last 6 months. does it need to be replaced?
K krime13 Well-Known Member Jul 5, 2007 #3 you will know when to replace it, it will start going out on its own, than turn back on on its own...
you will know when to replace it, it will start going out on its own, than turn back on on its own...
