What's in the box:

18V 30W Flexible Monocrystalline Solar Panel Solar Battery Charge 12V Waterproof Solar Panel for Caravan RV Boat (2)

Features:
Semi-flexible: the panel can be flexed to a maximum of 30, ultra-thin: solar panel is only 2.8mm thick, this allows the panel to be flush mounted to curved surfaces like RV's, sailboats, campers, tents, etc.
Highly efficient monocrystalline solar cells.
This product can charge 12V lead-acid batteries, including 12V lithium and other equipments.
The way of the power supply is energy saving and environmental protection.
Suitable foroutdoor working, travelling or camping.

Specification:
Maximum Power [Pmax]: 20/30/40/55W+0. 25W
Working voltage [Vmp]: 18V+0. 3V
Working Current [Imp]: 1.66A*0. 15A
Short Circuit Current[Isc]: 1.74A+0. 15A
Open Circuit Voltage [Voc]: 22V+0. 8V
Temperature coefficient of the voltage:(0.06510?0.15)%/?
Temperature coefficient of current: -(16010)MA/?
The temperature coefficient of power: -(0.50.05)%/?
Maximum System Voltage: 20V
Ambient temperature:-40/?-+85/?(40F to185F)
Air resistance: 50 psi(2400 pascals)
Snow resistance: 113 psi (5400 pascals)
Hail impact: 25mm (1 inch)at 23m/s (52mph)
Item Size: 435 * 435 * 2.8mm
Net Weight: 650g
Package Size: 46 * 46 * 4cm / 18.1 * 18.1 * 1.6oz
Package Weight: 1194g / 42.1oz

Package List:
1 * 30W Monocrystalline Solar Panel
1 * Cable
1 * Manual