SOLAR PANEL CHARGER 20W portable solar panels are the ideal companion for outdoor adventurers or environmentalists. Three details of solar panels High-quality Monocrystalline Silicon Solar Panels The average conversion efficiency of monocrystalline silicon batteries is about 1% higher than that of polycrystalline silicon. solar panels use high-purity silicon material, low impurity content, which can ensure the stability Two Eyelets Design+2 Complimentary Hiking Buckles+Easy to carry When traveling, the solar panel can be fixed to the bag, so that the phone or flashlight can be charged.The portable solar panel for camping is easy to carry and can be charged through USB. Perfect for carrying in a travel bag.