【Universal Voltage Compatibility】: This power adapter operates seamlessly on a worldwide input voltage range of 100-240VAC at 50/60Hz, ensuring versatile usage across various countries and regions【Efficient Charging Performance】: With a 56-Watt power output delivering 14V at 4A, this AC/DC battery charger significantly reduces charging time, boasting a fivefold increase in speed compared to conventional 2-amp USB chargers. Note: Not compatible with 5V versions【Compatibility with NOCO Genius Boost Jump Starters】: Specifically designed for Genius Boost Ultra Safe Lithium Jump Starter models GB70, GB150, GB250+, GB251+, GB500, and GB500+, ensuring optimal performance for your devices【Certified Safety Standards】: Our charger is rigorously tested and certified by UL, CE, FCC, and RoHS, guaranteeing superior reliability and safety. Equipped with OVP, OCP, and SCP protection mechanisms, it safeguards against over-voltage, over-current, and short-circuit risks, ensuring the safety of your connected devices【Responsive Customer Support】: We prioritize customer satisfaction and offer round-the-clock online customer service. Should you have any inquiries or concerns regarding our products, please reach out to our dedicated support team, and we'll promptly assist you within 24 hours