product description Material: aluminum substrate + PET Size: folded, 420*280*3mm; unfolded, 840*420*1.5mm Quantity: 1 piece Rated power: 18W5% USB voltage: 5V USB current: 1.7A DC voltage: 12V DC current: 1.5A Output accessories: DC line + DC alligator clip Package Contents: 1*Solar Power Panel 1.More efficient: High conversion rate material + high transmittance PET material, greatly improving the charging efficiency of solar chargers. The honeycomb structure increases the power generation by 20%, which can achieve the most ideal charging effect in a limited space. 2.Built-in intelligent controller: The charging algorithm is upgraded, and the charging efficiency is increased by 20%-30%. It is automatically charged during the day and turned off at night without consuming battery power. Provides multiple protections such as overcharge protection, over discharge protection, short circuit protection, overload protection, reverse polarity protection, etc. 3.Full ProtectionsPrevent the battery from overcharge, over-voltage, discharge, and short circuit, reversed polarity protection. Waterproof and sparkproof, the battery is under full protections. 4.Wide range of applicationsComes with carabiner cup to meet your different installation needs. Suitable for automobiles, RVs, motorcycles, ships,snowmobileetc. 5.Lightweight and portable: Lightweight and super portable. The case is durable enough to extend the lifespan of the solar panel.