Specification: Item Type: Solar Panel Material: Class A Polycrystalline Silicon Color: As shown in the picture Product Size: Approx. 159x94mm / 6.26x3.70in Weight: Approx. 65g / 2.3oz Working Voltage: 5V Power: 2W Working Current: 0-400MA Output Port: USB Conversion Efficiency: 18.8 % USB Cable Length: Approx. 45cm / 17.7in Process: EVA laminated one Package List: 1 x Solar Panel Note: 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.