Feature:1.?EFFICIENT?Solar cells performance excellent in weak light environment and yield better energy over the long run. 2.?LIGHTWEIGHT & PORTABLE?The solar panel is lightweight, dimension: 4.2 x 0.8 inch, easy to carry and install, made with Polysilicon Solar Charging Panel. 3.?WIDE COMPATIBILITY? The solar charger works for emergency lights, advertising lights, traffic lights, household lights, electric fans and most of devices that require 4V power. 4.?GREEN, CLEAN, & ECO FRIENDLY ENERGY?Use all your devices anywhere you are and do your part for the environment with our greener, cleaner source of energy. Specification:Condition: 100% Brand New Item Type:Polysilicon Solar Charging Panel Material: silicon Color: As picture shown Product Size: Approx. 107x20mm/4.2x0.8in Weight: Approx. 76g Working current: 0 75MA Voltage: 4V Solar panel: 0.3W polycrystalline silicon solar panel Package List:6 x Solar Panel