The Acefast A4 is a compact 20W wall charger featuring PD3.0 fast charging technology with a single USB-C port and UK plug. It's designed to provide efficient and safe charging for compatible devices like smartphones, tablets and other USB-C devices. Key features: • 20W Power Delivery 3.0 fast charging • Single USB-C port output • UK plug design with 100-240V input • Compact and portable size • Multiple safety protections • Compatible with most USB charging devices • Flame-retardant materials The charger supports multiple charging protocols including PD3.0, QC3.0/2.0, and AFC. It features a flame-retardant PC material construction with V0 fire protection rating and various safety certifications including PSE, 3C, and ERP6 energy efficiency. The output specifications are DC 5V/2.4A, 9V/2.22A, 12V/1.67A with a maximum output of 20W.