Features -Made of high-quality monocrystalline silicon and plastic materials, durable -Easy to carry, high conversion rate -Solar energy is converted into electricity, energy saving, environmental protection and pollution-free -USB interface, suitable for any USB charging electronic device -Equipped with controller, adjustable parameters -Built-in short circuit protection, open circuit protection, reverse connection protection, overload protection Specifications Model:Only 12V 30W Solar Panel/12V 30W Solar Panel+40A Controller Product size:46*21*3cm Weight:460g/600g Colour:Black+Blue Material: monocrystalline silicon Shell Material: Plastic PackingKraft paper box Package includes 1 x Solar Panel 1 x Battery Clip 1 x Cigarette lighter 1 x English User Manual