Shenzhen Union Top Electronics Co., Ltd. was established in 2001, located in Shenzhen, Guangdong, China. Our company is a high-tech enterprise specializing in developing, producing and operating 5W~180W ac dc power adapter,switching power supply.cable,LED driver,Car Charger Union Top integrates designing, molding, manufacturing, testing, and finishing products. We comprise with a team of professional engineers and managers together with the sophisticated equipments for production and ...