ALEXANDRIA, Va., July 21 -- United States Patent no. 12,690,100, issued on July 21, was assigned to ZHEJIANG NVC LAMPS Co. LTD (Quzhou, China).

"Color temperature adjustment apparatus and color temperature adjustment method for color-temperature-variable lamp beads connected in series" was invented by Xiaorong Zheng (Quzhou, China), Renyan Zhan (Quzhou, China), Weijian Mao (Quzhou, China), Xin Wu (Quzhou, China) and Xiaoyuan Qiu (Quzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A color temperature adjustment apparatus and a color temperature adjustment method for color-temperature-variable lamp beads connected in series are provided. The provided includes control manners such as single-chip micro...