21W true high power，Assembled by 3 high-quality solar panels, each provides 7W power (many market products are advertised as 20W, but the actual power is only 8W)

5V voltage, can output 3500mA high-speed current (there are products marked 12V on the market, but in fact it cannot reach it, and the power of 12V products usually exceeds 100W)

Solar energy conversion efficiency is as high as 19%, more than 1/4 higher than mainstream products in the market, and charging is faster

With PET lamination technology and matte process, it is not easy to scratch, more durable and has a longer service life

The product adopts monocrystalline silicon + waterproof cloth, so you don't have to worry about water splashing

It is perfectly compatible with the charging protection system of APPLE devices and solves the instability problem of APPLE devices using solar charging panels

The products have passed CE, FCC, RoHS certification

Maximum power: 21W

Voltage: 5V

Maximum current: 3500mA

Working temperature: -20-60°C

Output interface: 2 USB

Extended size: 700*290*30mm

Folding size: 290*170*30mm

Weight: 710g

Material: monocrystalline silicon + waterproof fabric

Solar Energy Conversion Efficiency: 19%

Product model number: ES-21

solar charging panel *3

carabiner hook *1

English manual *1