Feature: 1. HIGH EFFICIENCY CHARGING: The solar panel adopts monocrystalline silicon technology and outputs 50W power, which enables fast charging and improves charging efficiency. 2. SAFE TO USE: Compatible with 12V 24V system, and can prevent the battery from over charging, over voltage, discharge, short circuit, with reverse polarity prevention as well as water resistant function, which can prolong the battery life and improve the system performance. 3. DOUBLE USB INTERFACE: Equipped with double USB interfaces, it is convenient to charge cell phones and other devices at the same time, meeting the charging needs of multiple devices and providing more convenience. 4. STABLE AND RELIABLE: The solar panel kit is equipped with a 100A controller, which is highly stable and ensures stable and reliable running, and can effectively protect the battery safety. 5. WIDELY APPLIED: This solar panel controller kit is suitable for cell phones, RVs, security cameras, boats and many other devices or garage, fence roof, ground and other scenarios to use. Specification: Item Type: Solar Panel Controller Set Material: Monocrystalline Silicon, ABS Weight: Approx. 528g / 18.6oz Solar Panel Power: 50W (Without Power Storage Function) Solar Panel Size: Approx. 42x21cm / 16.5x8.3in Solar Panel Output Port: 2xUSB, 1xTYPE C, 1xDC Output Voltage: 12V 24V Controller: 100A. Package List: 1 x Solar Panel1 x Solar Charge Controller1 x Clip1 x Connection Cable