Max. power: 21W Color: Black Cell size: 156.75mmx156.75mm Brand Name: JTN Waterproof: IP65 Workmanship 2 years warranty Solar cell: MONO Surface material: PET/ETFE Size: 280*219.5*45mm (folded) Junction Box: 2 USB Interface Cell Type: Poly Mono USB/Type-C Output: 5V/2.4A