The POWERplus Gorilla is a high quality solar charger with a built in voltage regulator which generates a output of 5 Volts through the USB port and 14.8 Volts through the DC (car auxiliary power outlet).
The ETFE layer protects the solar cells from scratching, dust and water and guarantees a durable product suitable for tough conditions.
The folding design is easy to carry and light weight. The Gorilla has 3 solar panels which are rated at 6.7W each giving a total solar cell capacity of 20 Watts (STC tested).
The Gorilla has an average maximum output of 14W in sunny conditions. 

Technical Details:
Power - 20W (+/- 10%)
Average power output - 14W
USB output - 5V (2.8A)
DC output - 14.8V (1A)
Size folded - 20 x 28 x 3cm
Size unfolded - 59 x 28 x 2.5cm
Weight - 746g