Tackle Tek™ Solar Panel ChargerWild River's Tackle Tek™ Solar Panel Charger is sold separately as an accessory for your Wild River USB Charging System. The Solar Panel will extend the capacity of your Wild River power supply for those prolonged adventures. When exposed to sunlight it will trickle charge to your power supply. The rugged design is weather-resistant with two mounting options. Features:6 Volt/3 Watt Monocrystalline Solar PanelClip mounting feature for seamless integration to Nomad XP BackpackElastic loops for cable managementWeb tabs for additional mounting options12 to 15 hours of sunlight to charge your XP power supply** **Depending on daylight/geographic conditionsInput - 3 Watt Monocrystalline Solar PanelOutput - 6 Volt/3 Watt open circuit with Micro USB CableDimensions - 8"L x 6.5"W x 0.8"HWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.