Photo 1 of DC Motor Speed Controller, 110VAC Input 90VDC Output DC Motor Speed Regulator for Fan (400W)

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Photo 1 of DC Motor Speed Controller, 110VAC Input 90VDC Output DC Motor Speed Regulator for Fan (400W)Photo 2 of DC Motor Speed Controller, 110VAC Input 90VDC Output DC Motor Speed Regulator for Fan (400W)