These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch-resistant, and UV resistant, and they use 10 high efficiency monocrystalline SunPower cells with 22+% efficiency (praise the sun!). Each cell has a nominal voltage of 0.5V so we call this a "6V/5V" panel

They output a nominal 6V at 330 / 5V at 940 mA peak via a 3.5mm x 1.1mm DC jack connector. The panel is constructed with ETFE (Ethylene Tetrafluoroethylene), making it extremely durable and resistant to environmental elements, a superior upgrade to PET or laminate solar panel construction. They can easily stand up to typical outdoor use, including being dropped and leaned on. 

To connect, we suggest a 3.5mm OD/1.1mm ID DC jack or you can use this handy 2.1mm adapter cable which will turn it into a standard 5.5mm/2.1mmDC plug.

• Waterproof (IP67)
• UV resistant (5-7 year life)
• Durable and lightweight
• High-efficiency monocrystalline cells: 20%
• Compatible with the Medium Solar Panel Bracket using Voltaic's ETFE Panel Screw & Washer Set

Specifications:

• Size and Weight
• 112 x 136 x 2.7mm / ~5.25 inch x 4.4 inch x 0.4 inch / 13.7 x 22.2 x 0.4 cm / ~5.4 inch x 8.7 inch x 0.16 inch
• 79/188 grams
• 6 mounting holes
• Output
• Open Circuit Voltage:8.51V/ 7.13V
• Peak Voltage: 7.28V/ 6.12V
• Peak Current: 330mA/940mA
• Peak Power:2.37W/ 5.75W
• Power Tolerance: +/-10%
• For maximum power output, orient the panel towards the sun

• Construction
• 1.5mm double-sided PCB / Matte ETFE coating
• 2.0mm FR4
• Output Cable - 5V 5W Solar Panel - ETFE - Voltaic P105
• Cable Length: 50cm
• Cable Color: Red PU Coated
• Plug: Waterproof Male 3.5x1.1mm
• Extend the cable length using 1 foot, 4 foot, and 10 foot extension cables
• Solder directly to a PCB using extension with exposed leads

Warranty:

2-year warranty on solar panels : Warranty Guide And Dimensional Drawing

Package Includes : 

• 1 x Adafruit 5366/5367/5368/5369/500/1525/2747 Solar Panel