Specification: Item Type: Number Sign Light Lamp Body Material: ABS + PC Environmentally Friendly Material Type: Number 0, Number 1, Number 2, Number 3, Number 4, Number 5, Number 6, Number 7, Number 8, Number 9 (Optional) Product Model: N766 Solar Panel: Polysilicon 2V x 130mA LED Parameters: 6PCS x 2LM Battery Capacity: Ni-MH AA 1.2V / 850mA Charging Method: Solar Charging Charging Time:> 6H (Different Light Intensity Will Affect Charging Efficiency) Duration of Lighting:> 8 Hours Waterproof Rating: IP65 Working Mode: Manual Control + Light Control Product Height: Approx. 183mm / 7.2in Package List: 1 x Door Number Sign Light2 x Set Fixing Screws1 x Instruction Manual Note: 1. Keep away from fire, otherwise the battery will explode due to high temperature. 2. Avoid using in high temperature above +50 , low temperature and humidity and corrosive environment below -10 . 3. Charge at least once every 3 months, otherwise it will affect the battery life. 4. Make sure that the solar panel can be directly exposed to sunlight during use. The longer the solar panel is exposed to direct sunlight, the higher the charging efficiency, and the lower the charging efficiency. 5. Due to the oblique anti-disassembly design of the product, the installation sequence is required. When the combination of more than 2 door number lights is installed, the number on the right must be installed before the left.