Certified Safety- Certified and listed by the nationally recognized electronics safety expert UL. Only products with the top quality, workmanship & safety level in the industry can pass the extremely stringent quality tests to obtain this honorable certification. Flawless Compatibility-- Exclusively designed switchable usb c connectors will fit for HP laptops of 45W with usb c connectors. Worry-Free Warranty-- Full refund or replacement within 30 days of purchase if unsatisfied anytime for any reason. An additional 1 years warranty and dedicated customer support are right at your service. Power and Speed: This item is equipped with advanced fast charging technology - the PD (Power Delivery) technology. Note: The fast charging feature only applies to USB-C PD enabled devices. Other Specs-- Output: 20V 2.25A 45W, Input:100-240V