This single-crystal panel boasts a 17% solar energy transformation efficiency thanks to its robust fine resin surface and sturdy backing, making it perfect for outdoor use. It comes with a 2mm JST connector for connection with many of our boards, like the Seeeduino microcontroller series, Lipo Rider charging boards series, and XBee WSN products series. The open-circuit voltage typically ranges from 5-10V depending on light intensity, making it important to check for safe voltage before connecting to boards operating with a narrow input range, such as Lipo Rider.