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Loginthey come in 2 3 4 outputs ... normally used in wire frames and run from $30 to $40
if you get an indoor one (one that isn't rainproof) you will have to put it in a enclosure the 1000 from the broadband store works well. If they even get a little damp they will fail.
That being said one of the wireframe makers has a weatherproof one for about the same price.
They are simple on off type controllers with a speed control on them ... Larry Cupp would know where the weatherproof ones come from.