C cyloq Member Location bayside, NY (4 blocks from fish town) Rating - 100% 1 0 0 Apr 24, 2006 #1 How do you know when its time to change metal halide bulb?
coralcrazy Advanced Reefer Location Randolph, NJ Rating - 99% 97 1 0 Apr 24, 2006 #2 light flickers...color changes...stuff like that...
House of Laughter Super Moderator Staff member Vendor Manhattan Reefs Real Reefer Supporter Location Ossining, NY Rating - 100% 310 0 0 Apr 24, 2006 #3 cycloq, DE users typically will change them after 6 months - but again, like many things in this hobby, nothing in typical. I have 2 that are going on 9 months old and have seen no ill effects. It also depends on how long (how many hours) you run them - if you only run them 4 hours, you'll get more lenght than if you run 8. Hope that helps, House
cycloq, DE users typically will change them after 6 months - but again, like many things in this hobby, nothing in typical. I have 2 that are going on 9 months old and have seen no ill effects. It also depends on how long (how many hours) you run them - if you only run them 4 hours, you'll get more lenght than if you run 8. Hope that helps, House