ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,532,391, issued on Jan. 20, was assigned to LEEDARSON LIGHTING Co. LTD. (Zhangzhou, China).

"Lighting apparatus" was invented by Bihong Zheng (Fujian, China) and Bin Zhang (Fujian, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lighting apparatus includes an isolation transformer, an output rectification and voltage regulation circuit, an output current limiting and filtering circuit, and a signal detection and generation circuit. The homonymous terminal of the primary side opposes the homonymous terminal of the secondary side. The output rectification and voltage regulation circuit is connected to the secondary coil of the isolation transformer...