Each of these battery powered uplighters contains 4 x 12W RGBWAUV LEDs  which gives you an amazing amount of colour options including UV.  Each can be set to static colour, fade or sound activation mode and can be controlled by the wireless remote control or set up via the side panel. Maximum running time varies on the mode: 18 hrs single colour, 5.5 hours colour fade change, 3 Hrs with all LEDs full on. These are most commonly hired out for weddings and corporate events to give the room some ambience and decoration. If you choice to hire 8 or more then the lights come in a flight case which will recharge the lights after use.