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	06-17-2011, 05:09 PM #11
Junior Member
When do you replace your HPS bulbs?
great thread and very informative i needed to see something like this thanks all.
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	06-19-2011, 03:58 PM #12
Senior Member
When do you replace your HPS bulbs?
I use a high end photo light meter, set on a 4' stick taking reading in several places and after 6 months of use the light out put is
one half or less than a new bulb reads.
So I replace all my bulbs every 6 months ,might be a waste but I DON'T THINK SO
Daddy
 
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