Specifications: 1) Material: PC&ABS 2) Working time: up to 8 hours 3) Solar energy battery: imported mono-crystalline silicon or polycrystalline silicon solar energy battery sets 4) Light source: 1 high brightness LED 5) Storage battery: one 1.2V 600mAh rechargeable Ni-Cd battery 6) Color of the light: white, green, yellow, blue, red (optional)