1-Push switch; 2-220V/50Hz; 3-4 speed control; 4-With remote; 5-Used for kitchen hood, other home applicance; Specificaiton:1-Three working speed:Fast , medum and slow;2-delay ,up and down,timer ,Clock functions,smoke sensor function,remote control;3-sound notice when you press the button4-Over currency ,over voltage protection5-All of switch will past long lifetime test before shipment. 2012 ...