Specifications: - Battery: 1.2 Volt (800 mAh) rechargeable Li-ion battery - Battery charging time: 7-8 hours (when the sunlight is >30,000 lux) - Battery working time: 10+ hours (full charge) - Working mode : 8 working modes Attentions: 1. The solar panel should be placed in a place without shade in order to receive the maximum amount of sunlight during the day. Do not knock to avoid damaging the solar cell. 2. To maximize battery capacity, the solar collector string light should be fully charged in sunlight for at least eight hours before first use. 3. The IP rating of this thong is IP65, which means it can be used outdoors, but please don't throw it in water. 4. Please do not throw the battery into fire to avoid explosion. 5. Please understand that the working hours of our products depend on sunlight, location and weather etc.