Features： 1、APPLICABLE OCCASION: The main function is to power most 12V acid batteries, including 12V lithium battery and other equipment, can also be bent 30 degrees and installed in RVs, fishing boats, wooden houses, tents or any other outdoor scene to supply power 2、FOR OUTDOOR: This power supply method is energy saving and environmentally friendly, ideal for outdoor work, travel or camping training 3、PREVENT BACKFLOW: Built in blocking diode prevents battery discharge at night. Current cannot flow back and damage the circuit boards in the battery 4、WATERPROOF DESIGN: The monocrystalline silicon solar panel with fiberglass and polycarbonate surface makes the panel more durable. Waterproof design for all weather 5、 COMPATIBILITY: 1 flexible board is suitable for 12V system. 2 boards can be used for 24V systems in series and 12V systems in parallel Specification： Item Type: Flexible Solar Panel Material: Monocrystalline silicon and PET Maximum Power (pmaximum): 15W Output: Multi Contact Irradiance: 1000W/㎡ Temperature Coefficient Current: -(160±10)mA/℃ Temperature Coefficient Power: -(0.5±0.05)%/℃ Ambient Temperature: -40℃ ~+85℃ (-40℉ to 185℉) Air Resistance: 50psf (2400 pascals) Snow Resistance: 113psf (5400 pascals) Hail Impact: 25mm (1in) at 23 m/s (52mph) Package List： 1 x Solar Panel 1 x Male Terminal 1 x Female Terminal 1 x Connector Male 1 x Connector Female 1 x User Manual