MH Lamp Life?

[jackdp]

I've searched around and not finding this even though I'm sure its here. Abouts how long are MH lamps good for? We've just moved into a new house and I'm setting up my lights and I think my MH lamp is about 14mos. old. Time to get a new one? TIA

 

[fishfreek]

Lamps should be replaced after a year of usage.