Aquatic Plant Central - View Single Post - [Wet Thumb Forum]-Lighting for a diy 350L
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Old 08-03-2003, 08:39 AM   #11 (permalink)
theofilos
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OK than. I will buy 2 x 175w. In the specs you can see that average service life is 250h. Does this mean that I will need to change the bulb every 25 days? I hope it is something else. By the way what is the life expectancy of these lamps?
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