The Vevor 2-piece 400W bifacial solar panel set is built for efficient off-grid power generation with 16BB N-type monocrystalline cells and at least 24% conversion efficiency. Its bifacial design helps capture both direct and reflected light for improved energy output. Each panel features MC4 output for straightforward connection and an aluminum frame with IP65 protection for outdoor durability. Designed for use on RVs, boats, rooftops, farms, yards, and cabins, it delivers dependable performance across a wide operating temperature range. Mounting brackets, controller, battery, and clips are sold separately.