During the night,the battery powers the leds. light in during the day,sunlight charges the battery Led light. clean,safe solar lights that are good for the environment and improve lives. Features Solar Power All solar lights require rechargeable batteries in order to store the solar power collected by the sun during the day to power the light at night. During the day the solar panel will recharge the internal batteries in the solar light so there is ample power in the evening for the lights to illuminate. Long Battery Life Most rechargeable batteries should be replaced every 18-24 mos. LED Solar Lighting is super energy efficient so your batteries can last longer depending on usage. LED 7 LED 4000mcd Material Stainless steel Transparent dome Material : Polycarbonate Case Material : ABS Weight 125 g Battery Type 1 Ni-MH Battery Capacity Charging time : 5-6 hours (the sun and sunlight intensity) Time : 4 hours of bright stalls, dark stalls 5 hours Battery capacity (maximum): 600mAH. 0.3W. 3.6?V Battery operating temperature: 55 degrees Celsius Battery minimum operating temperature: -20 degrees C Dimension 95 x 95 x 168 mm NON GARANSI PRODUK SESUAI QC DARI PABRIK