A heavy duty simple chase sequencer brings life to your lighted animation. Chase speed is determined by adjusting a simple rotary knob on the front of the unit. 150 watts per channel. Devise has setting to choose from a 2 channel, 3 chanel, or 4 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.