ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,389,504, issued on Aug. 12, was assigned to Hongbing Zheng (Hangzhou, China).

"Color-temperature adjustment device and lamp" was invented by Hongbing Zheng (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A color-temperature adjustment device and a lamp are provided. The color-temperature adjustment device includes a plug-in male terminal and a plug-in female terminal. A first end of the plug-in male terminal is connected to a first end of the plug-in female terminal, and a second end of the plug-in male terminal is configured to connect to a light-emitting component. A second end of the plug-in female terminal is configured to connect to...