【Efficient Performance】Bypass diodes protect solar cells against overheating and allow the solar panel to continue to work during accidental shading by bypassing low-performance cells. 【Reliable Power Output】The 200W solar panel (2pcs 400W) can provide an average of 800-1000 watt-hours (Wh) or 66-82 Ampere-hours (Ah) of electricity per day (depending on the availability of the sun). 【Industry Leading Technology】200w 12v monocrystalline panel is made of high purity silicon cells coated with advanced encapsulation material with multilayer sheet laminations to improve cell performance and provide lasting durability. 【BUILT TO LAST】Corrosion-resistant aluminum frame allows for extended outdoor use, ensuring the panel lasts for decades. The IP65 rated junction box is versatile thanks to its ability to resist dirt, dust, debris and low-pressure water jets. QUICK AND SIMPLE INSTALLATION - Pre-drilled holes on the back of the panel allow for quick mounting and fixing, ideal for off-grid applications, such as RVs, rooftops, cabins, yachts and more. They are compatible with ground brackets, Z-brackets, corner brackets, pole brackets and tilt brackets.