Quote:
Originally Posted by RobbyG
Out of curiosity have you checked those LEDs with a PAR meter?
I am wondering how much dimmer they are after seven years.
I suspect at 8=10 hours per day of running time you are probably about 20% dimmer than at the start. I am going to soon have to evaluate mine as they are probably about 15% dimmer and I might need to up my settings.
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I check them once a year. The first four years I used them with MH pendants, and then when I downsized I added two more BML XB's. I guess I need to check the Par level again since it has been a while. I tried a Mars Aqua 165 w Led and it dropped 50% the first year on another tank. I started it at 50% and in a year I had it up to 100% to maintain the original Par Levels