A heavy duty, one channel, simple on/off sequencer brings life to your lighted animation. On/Off speed is determined by adjusting a simple rotary knob on the front of the unit. 150 watts per channel. Its dimensions are 2-1/2" wide, 3-3/4" high and 1" deep. Non-grounded unit. 120VAC, 60 HZ use only. UL approved for indoor and outdoor use.