The panel is capable of 3.5 watts in the open sun with a peak power output around 6V at 615mA.

Packaged solar cell with a 3.5mm x 1.1mm barrel plug and 5.5mm x 2.1mm adapter on a 22cm (8in) cable. Each panel also features monocrystalline high efficiency cells at 19% with a waterproof urethane coating with hard-board backing. Robust sealing for outdoor applications!

Dimensions: 210mm x 113mm x 5mm (8.3in x 4.4in x 0.2in)

Features: 

• Monocrystalline cells - 19% efficient
• Open Circuit Voltage: 7.0V
• Peak Voltage: 6.0V
• Peak Current: 615mA
• Peak Power: 3.69 Watts
• Four screws on back corners of panel allow multiple mounting options
• Waterproof Urethane Coating
• UV Resistant