all you have to do is put a oulet strip that plugs right in the back to connect multi plugs to it.they all have a 700 watt output and if you do the math you could hook up alot of heat tape to it depends on the size but flex watt 11" is 20 watts per foot and the 4" is i think 4 watts.just know the watts alittle math and one unit can controle more then enough for rack systems.heres a some pics of the unit i bought.
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