heat sinks and how hot is too hot?

Discussion in 'RapidLED' started by droopymatt, Aug 24, 2011.

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  1. droopymatt

    droopymatt Bristle Worm

    Jul 25, 2010
    Newton, KS
    is there any kind if rule of thumb on sizing heat sinks and what the acceptable operating temps would be?
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  3. Rapid LED

    Rapid LED 3reef Sponsor

    Sep 21, 2010
    For operating temps it's best to keep the heatsink under 100F or so. A little higher is okay but you certainly don't want to be anything higher than about 120F.

    For sizing heatsinks it really depends on the height above water and the optics, so it's hard to say for sure. It also depends on what kind of PAR levels the tank requires so there's no definite rule for that.