Model Number: JSR-SSL-102 Application: Home Output Voltage (V): 3.7-4.2V Solar Power (W): 13W Work Time (h): 8 Solar panel: Polycrystalline Silicon Battery: Polymer Lithium Battery Material: PC + PMMA Warranty: 2 Years Working voltage: 3.7-4.2V Solar panel power: 8W/13W Product series: All in one solar street light Fixture color: Black/ Silver Light source: SMD LED Chips Size: 620*240mm