installed today on my nearly-built catamaran sailboat, for interior air movement while sailing SW Florida. Instead, its ridiculously-high noise would scare-away most wildlife, and make enemies of any nearby-cruisers. Pure junk! Will try devising a "power-reducer", in hopes that slowing its crazy-fast spin speed, but also reduce its noise levels. I would throw this just-bought fan away, if a power-limiter isn't discovered. Ughhh....