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Pat. 10257915 United States, Int. Cl.22 H05B 37/02, H02J 7/00, H05B 44/00, H02M 3/335, H02J 7/34. Time-delay lighting circuit and device thereof : Appl. N 15/536571 : Filed 16.12.2016 : Pub. 09.04.2019 : / Yehua Wan, Jinxiang Shen ; Assignee Zhejiang Shenghui Lighting Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10257915/en?oq=US10257915.html (дата обращения: ДД.ММ.ГГГГ).