This is a LED mini dimmer combined with a 11-button RF controller. It will be more convenient for you to control you strips since mini dimmer is easy to be concealed and RF controller is able to pass through battier and gets a long controlling distance and controlling range since it is not necessary to aim at the main unit when operating. Features: Voltage: 5V -24V Working current: 12A RGB control: 1 output channel Working temperature: -20 to +60° C Dimension: L1.6*W0.5*H0.2 inch