These 64 color uplights have rechargeable batteries. Will last up to 4 1/2 hours on a charge. Can either be hung from a truss or used on the ground. Dimensions: 10″ x 10″ x 4″. Recharge time: 4 hours. Simply choose your color, then hang or place on the floor. Red, Green, Blue or Blacklight LEDs can be programmed for 64 different colors.