Guoguang Electric Co., Ltd. Chengdu researches, develops, produces, and sells microwave electronic devices in China and internationally. Its products include microwave electric vacuum devices such as traveling wave tubes, magnetrons, and gas-filled microwave switching tubes; microwave energy application equipment; vacuum contactors; cathode components and magnetic materials; vacuum equipment and leak detection; vacuum components; aircraft galley equipment; and microwave instruments. The company also offers vacuum gauges, vacuum transmitters, microwave waveguide components, encapsulated housing products, reactors, laser therapy devices, and alloy materials. Formerly known as Guoguang Electron Tube General Factory, it was founded in 1958 and is based in Chengdu, China, operating as a subsidiary of Xinyu Huanuojin Enterprise Management Co., Ltd.