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#4
06-12-2012, 04:22 PM
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led
the light pollution is the spread outwards from the leds which spills outside your tank.with the amount of leds on the unit a tighter spread(60 degree) would not give a spotlight effect,and put more light into the tank itself.the par is reduced as the tank gets deeper.cree is the brightest for leds.it is a good upgrade,but other people have used vhos successfully.
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