21W Solar Panel Charger Foldable Portable 5V / 2.1 A Monocrystalline

Portable Folding Solar Panels can be classified into three types based on the material used to make their cells, including monocrystalline, polycrystalline, and thin-film, whether you use them as camping, fishing solar panels or as everyday boat on-the-go device chargers.Using Only Monocrystalline Solar Panels.

Constructed with silicon wafers cut from a single silicon crystal, monocrystalline solar panels rank best in both energy production and efficiency. The purity of the solar cell increases the ability of the solar panel to absorb energy from the sun, allowing the monocrystalline solar panels to output a high amount of electrical energy.

Technical Specs:
Maximum power of solar panel: 21W Material: monocrystalline silicon Conversion efficiency:24%2 USB output: 5V 2.1A Max WaterproofExpanded size: 600*240*2.5mm / 23*10*0.5 inchFolding size: 240*150*30mm / 9.5*6*1 inchPackage Weight: 0.7KG /24 ozNumber of Panels: 4

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