Tackle Tek Solar Panel Charger Wild 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 Panel. Clip mounting feature for seamless integration to Nomad XP Backpack. Elastic loops for cable management. Web tabs for additional mounting options. 12 to 15 hours of sunlight to charge your XP power supply**. **Depending on daylight/geographic conditions. Input. - 3 Watt Monocrystalline Solar Panel. Output. - 6 Volt/3 Watt open circuit with Micro USB Cable. Dimensions. - 8"L x 6.5"W x 0.8"H