Features:  - Used to charge mobile phones, MP3s, pads or other USB charging devices.  - Dual DC interface, easy to charge the device through DC male cable.  - You can put the panel in the sun and use it to directly charge the device.  - Very suitable for outdoor biking, climbing, hiking, camping, traveling, etc.  - Constructed with high-quality materials, environmentally friendly, slightly waterproof, durable and sensitive.  - Lightweight and portable, easy to carry.  - As long as there is sunlight, high conversion rate can be continuous power supply.  - Suitable for outdoor activities, emergencies and outdoor work.     Specification:  Name: Solar panel.  Style: 10A/30A/60A/100A.  Size: 210*180mm /8.3*7.1 in.  Maximum power (pmax): 50W.  Conversion rate 23-24%.  Voltage: 5V-12V-18V.  Maximum power supply voltage: 6V.  Short circuit current: 2A.  Junction box: IP67 RETED.  Working temperature: -40℃+85℃.  Color: Black.  Material: Monocrystalline silicon battery.     Package Contents:  1 X Solar panel.  1 or None X Solar controller (Optional).  1 X Transfer interface.  1 X Battery clamp.  1 X DC male cable.  1 X Manual