High Performance solar lights stays lit for up to 10 hours Lights up automatically every night 4 High output LEDs for brilliant white light Real Stained Glass 2 Long life AA Ni-MH rechargeable batteries included 3 Adaptors included to fit over an actual 5x5, 4x4 or 3.5x3.5 post Quick and easy Do It Yourself installation. 10 Lumens / 4500 5500 Kelvin