Schumacher"s Solar Power Station features three 18 Watt amorphous silicon solar panels, designed to charge all personal electronic devices, including smart phones, 12 Volt devices, GPS devices, portable game devices, etc. The panels are durable, Weatherproof and environmental friendly. The solar charger works in conditions such as low light, shade and even light rain. Ideal for cabins/sheds, boats, and RVs. Contents include: voltage regulator/LED display, USB, 12 Volt direct current, 9 Volt, 6 Volt and 3 Volt ports; two 12 Volt socket light kit; clamp adapter; 3 way connector; and light hooks.