Overdriving lights.
Titus, that I have talked about by use of a PAR meter.. it measurs light waves from 350nm to 700 nm (photosynthic light range. which is the real importance in a reef) so with this you can compare any bulb to any ballast. if you look at the Post I made last night to Darren I have found instructions on making your own, and also a company in edmonton who sells then .. as I will be in edmonton over the christmas season I will check that out to see how much they are.
Steve
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