TimR Posted July 13, 2004 Share Posted July 13, 2004 I'm thinking of upgrading my 29 from 2x55 PC's to a 14K 175 watt MH in the fall. I've seen postings where people say the MH bulbs last 2 years and other postings which say to replace them every 9 months. What is the correct answer? Link to comment
KrackerG Posted July 13, 2004 Share Posted July 13, 2004 depends how long you run them for...i run my MH for only 6 hours with an hour before and and an hour after running only actinics... i think mine should last over a year Link to comment
fade2black Posted July 13, 2004 Share Posted July 13, 2004 Just about all lighting should be replaced yearly at the most (PC, MH, VHO, T5, etc). That being said, when I ran MH I changed bulbs about every 10 months as I started to notice the color shift. But mine ran 10-11 hours a day. Your eye might not notice it right away, but the color starts to shift in all bulbs as they get older. Link to comment
Guy Posted July 13, 2004 Share Posted July 13, 2004 If I may make a suggestion, you may want to consider going with a 250 watter as oppposed to 175. I have the same set up as you and I upgraded from 2x55's and went with a single 250, which honestly wasn't as bright as I thought it would be. also, I do not have any supplemental lighting in the hood, so if you are running additional lighting, 175 may be fine. Just me 2 cents. Guy Link to comment
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