?Service Guarantee?- we provide you 30 days money back or replacement for you without any hesitate, One year warranty, If you have any question, feel free to contact us. ?Input Output range?- Input voltage: 100V-240V, 50-60Hz; Output: 5V 3A, 9V 3A, 12V 3A, 15V 3A, 20V 2.25A,20V 3.25A, please check our charger adapter exactly the same as your original voltage and current and USB C interface match yours. ?Multiple Safety Certification?- DTK usb c power charger has throughed CE, UL, FCC and other certifications, Type C Charger adapter has a built-in multiple protection system to avoid overvoltage, overcharge, overheating, etc, The smart chip automatically matches the current required by the your device and stably for your laptop/smartphone device Charge. ?Universal Compatibility?- USB C Macbook charger compatible with all usb c interface devices, including MacBook Pro 13/15/16 inch, MacBook Air 2020/2019/2018, MacBook Retina 12 inch, Lenovo Yoga, ThinkPad, Lenovo, HP Spectre, Think pad, Nintendo Switch, Samsung Chrome book Pro, Acer Spin 7 and other usb c device. ?Fast Charging Safe Efficient?- DTK USB C power adapter has a high charging efficiency of up to 96%, power charger can fully charge most laptops in about 1 hour and 40 minutes, 45W usb c charger also compatible with USB C 45W, 30W, 29W, 25W, 20W, it is perfect for your charging whenever you are at home/office/traveling.