An economical choice for a starter RV, boat or cabin solar energy system, our 50 watt solar kit includes everything you need for your solar energy installation. The panel outputs 2.95 amps of solar energy or about 100 amp-hours per week, based on 5 hours sun per day. Includes 50 Watt solar panel, mounting hardware (flat surface mount), 4 amp solar charge controller, 15 foot cables, hardware and complete instructions.Panel measures 20" x 30" x 1.4". Panel output 2.95 amps, Rated voltage: 17V. Weighs approximately 15 pounds.