Features 1、Conversion Rate: 25W solar panel battery charger has high conversion efficiency, good output efficiency, low light efficiency and strong applicability. 2、USB Ports: Solar panels are used to charge MP3 phones, and other controlled devices. Dual female USB ports, you can easily charge your device via USB cable. 3、Scope of Application: Solar panel kit is suitable for car, RVs, ships, airplanes, satellites, space stations, outdoor farming, planting, tourism, solar street lights. 4、Convenient to Use: You can put the solar panel in the sun and use it to charge the device directly. Suitable for outdoor cycling, climbing, hiking, camping, tourism, etc. 5、Producat Size: The 25W solar panel is made of sonocrystalline silicon. Solar panel size is 54x28cm / 21.2x11.0in. 30A controller size is 13.3x7x3.5cm / 5.2x2.8x1.4in. Specifications Item Type: 100W Solar Panel with 30A Controller Material: Monocrystalline Silicon Color: As Pictures Shown Weight: Approx. 898g / 2.0lb Solar Panel Size: Approx.54x28cm / 21.2x11.0in Controller Size: Approx. 13.3x7x3.5cm / 5.2x2.8x1.4in Maximum Power (pmax): 25W Open Circuit Voltage (voc): 20V Maximum Power Voltage (vmpp): 18V Short Circuit Current (isc): 1.5A Maximum Power Current (impp): 1.38A Output: USB 5V DC 18V Standard Test Conditions AM=1.5 Irradiance=1000W/㎡ Temperature=25℃ Controller Parameters: Rated Voltage: 12V 24V Automatic Rated Current: 30A Controller for Batteries: OPEN, AGM, GEL Features: No Power Storage Function Scope of Application: Car Batteries, Cars, RVs, Ships, Airplanes, Satellites, Space Stations, Outdoor Farming, Planting, Tourism, Solar Street Lights. Package List 1 x Solar Panel 1 x Charging Cable 1 x Battery Clip 4 x Suction Cup 2 x Carabiner 1 x Cable 1 x Controller 2 x Chinese and English Manual