LED Par Lights, Blusmart 24W 18 LED Disco Lights with Music-activated, Auto-run and DMX512 Control Mode, Different Colors Combinations of Red, Green and Blue, Multi-angle Rotating Holder Blusmart Par Light include music-activated operation, auto run feature, gradual changing color features, color features and options instantaneous transformation fixed-color output function. Multi-color Change - 18 LEDs (6 Red LEDs + 6 Green LEDs + 6 Blue LEDs). DMX Control - On the back of the par light, there's DMX IN and Out port, use it to control the lights. Dual Handle Design - Blusmart Par Light can be hung on where you want, and stand on where you want; Feel free to adjust the angle. Cooling Fan - Inside of the par light, there's cooling fan, in order to extend the life of the lamp. There's a little noise with the fan, if you mind, before you purchase it, please consider this point.