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March 6, 2014
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Tomatovillian™
Join Date: Feb 2010
Location: Missouri
Posts: 309
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fluorescent bulb replacement
I have fluorescent bulbs of all ages. I am not using any that are starting to get black on the ends. How often should the bulbs be replaced. Should I be marking them somehow and discarding them at a certain age. I am assuming they get less efficient. I am not worried about the energy cost but adequate light to the plants.
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