How large of an area will those par38 lights cover? Say anywhere within a foot above the sump, that is how much room I can use. Also what is the diff between 40-60-80 optics?
one of those par38's at a foot above the water's surface will light about a 12" diameter spot onthe water with 40 degree optics, about 18" spot with 60's and 24" spot with 80's
Originally Posted by cg5071
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