Solar panel：21W (Sunpower solar cell)
Output voltage：5V Dual USB
Output current：3.5A Max
【HIGH EFFICIENCY】Constructed with 21 watts High efficiency Sunpower panel, the power conversion rate increases As much as 21%-24%, providing enough power to charge 2 devices at same time.
【DUAI USB PORTS】As much as 2.4A output every or total 3.5A max output under direct sunlight – Routinely detect & adapt in your USB powered devices to give you the fastest charging speed.
【PORTABLE】Foldable design for simple carry and transport, water-proof to endure all weather conditions, great for nature trips, mountain climbing, picnic, sailing or other outside activities.
【MATERIAL】Made of PVC water-resistant coating material, enhancing the water resistance, abrasion resistance, elasticity and heat resistance.
【ENVIRONMENT FRIENDLY】 Generate electricity under sunshine without built-in lithium battery, there are not much troubles result from exposure to the sun.