The compact solar charger from Knog provides an endless supply of clean, renewable energy. Use the charger to power your phone, smartwatch, tablet, or GoPro, or store the energy first in an external PWR bank for later use. As expected from Knog, the PWR Solar 10W is packed with technology and features, making this solar charger superior to all other comparable chargers on the market. With its compact, lightweight, and durable design, the PWR Solar 10W is the perfect choice for rugged outdoor adventures, whether cycling or hiking.