led vs mh

[carlosdaccach]

i currently own a 300 centimeter long tank x 70 cm heigh x 60 cm deep where i keep my SPS and LPS (mostly LPS), my lighting fixture has 5 MH lamps (250w 15k). the only problem with my tank is that its to open to light so between 2(lights on) til 5 i get to much glare from the glass. will this problem be worst with led lighting? how many pr156 sets would i need to compensate my current lighting?

[mr.wilson]

i currently own a 300 centimeter long tank x 70 cm heigh x 60 cm deep where i keep my SPS and LPS (mostly LPS), my lighting fixture has 5 MH lamps (250w 15k). the only problem with my tank is that its to open to light so between 2(lights on) til 5 i get to much glare from the glass. will this problem be worst with led lighting? how many pr156 sets would i need to compensate my current lighting?

You would need 5-6 PR 156 fixtures (depending on your rock structure), as each 120w fixture replaces a 250w metal halide. LED light is more directional so it will not illuminate your glass as much, resulting in less nuisance algae.