Feature: 1. Widely Compatible: Intelligent recognition, widely compatible, the USB solar panel can be used to charge mobile phones, mobile power supplies, laptops, tablets, GPS, cameras and other devices. 2. Applicaiton: The solar charger is waterproof and can withstand all weather conditions. It is very suitable for outdoor activities such as camping, mountain climbing, hiking, picnics, and some emergency situations and outdoor work. Specification:Item Type: 50W Solar Panel Kit Material: Monocrystalline Silicon + PET Laminated + Plastic Shell Product Color: As Pictures Shown Single Solar Panel Size: Approx. 36x34cm / 14.1x13.4in Controller Size: Approx. 13.3x7x3.2cm / 5.2x2.8x1.3in Product Weight: Approx. 1120g / 39.5oz Solar Panel Chip: Monocrystalline Silicon Power: 50W Voltage: 5V/18V Current: 2.8A/1.8A Output Interface: Dual USB + DC Conversion Efficiency: 18-20 Feature: Two solar panels can be connected via DC interface Application: It can be used to charge mobile phones, mobile power supplies, laptops, tablets, GPS, cameras and other devices. Controller Parameters: Controller Voltage: 12V / 24V Automatic Identification Controller Current: 100A The Maximum Photovoltaic Input Power of the Controller: 1260W12V2520W24V Controller Standby Current: 10MA Controller Usb Output: Dual USB Output, 5V / 2AMAX Controller Working Temperature: -35 to 60 Package List:1 x Double Solar Panel1 x Multi Purpose USB Connection Cable1 x Car Charger Connector1 x Clip Adapter Cable8 x Suction Cup1 x Solar Panel Manual1 x Solar Charge Controller1 x Controller Manual