【10BB Cell Design】More Busbar, More Power. Newpowa 100W glass fiber flexible solar panel uses the high-level 10BB cell design with a 23% highest conversion rate. It makes the solar panel have a longer service life. Increase the cell receiving surface, a thinner ribbon reduces the covered area by 22%. Also, it can charge a 12V battery or a 24/48V battery by wiring several solar panels in series. 【Ultra Lightweight】Only 3.8lbs, 0.08inch thin, less than conventional solar panels, making transportation and installation a breeze. Due to its lightweight and portability, this module is ideal for marine boats, teardrop trailers, curved roofs, and overlanding tents. 【Excellent Quality】With IP68 waterproofing, high-efficiency monocrystalline solar cells also advanced high-temperature soldering which features low encapsulation loss, lower operating temperature, and higher output, hyper-cell string ribbons. 【Wide range of application】It is very suitable for 12-volt battery charging. Multiple panels can be connected in series to charge 24/48 volt batteries. It needs to be used with the controller to protect the battery, and the solar panel can be easily connected to the solar controller/regulator. 【Warranty】1 Year Limited Material and Parts Workmanship Warranty. 10BB Cell DesignMore Busbar, More Power. Newpowa 100W glass fiber flexible solar panel uses the high-level 10BB cell design with a 23% highest conversion rate. It makes the solar panel have a longer service life. Increase the cell receiving surface, a thinner ribbon reduces the covered area by 22%. Also, it can charge a 12V battery or a 24/48V battery by wiring several solar panels in series.