... professional manufacturer of various of chargers , car chargers, travel chargers, usb chargers, mobile /cell phone chargers, adapters, ac/dc adapters, power ... OEM service for customers.Products Characteristics:1. with fixed frequency control circuit, it provides with over voltage, over current, overheat and short ... : AC100---250V, 50--60Hz, universalOutput: 3.0--20V/0--1000mA USB travel charger with CE