Aquatic Plant Central - View Single Post - How frequently do metal halide users change their bulbs?

Ibn · 01-05-2007, 09:12 AM

Just basically whenever they burn out. MH bulbs last much longer than other bulbs and replacing them only after a year's usage is a bit too often. The light dropoff after a year's use is only 20% under normal usage.

01-05-2007, 09:12 AM	#3 (permalink)
Ibn Senior Member Join Date: Oct 2004 Posts: 286 iTrader Ratings: 3 iTrader Positive Rating: 100% Plant Points: 9165	Just basically whenever they burn out. MH bulbs last much longer than other bulbs and replacing them only after a year's usage is a bit too often. The light dropoff after a year's use is only 20% under normal usage.