To activate your LED Rechargeable Lounge Chair, first charge your chair with the A/C adapter provided. Once your LED Lounge Chair has charged for at least 6 hours, it is good to go. Use remote control to change its color, many single colors to choose from, plus a cool slow color change. Dimensions (L x W x H): 23″ x 22″ x 19″ LED Colors: An entire array of color combinations and options. LED Lounge Chair recharges night after night; does not require batteries.