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Pat. 11404903 United States, Int. Cl.22 H02J 9/06, F21S 9/02, H02J 7/00, H02M 7/5395, H05B 45/10, H05B 45/37. Lighting system including a power backup device : Appl. N 16/918784 : Filed 01.07.2020 : Pub. 02.08.2022 : / Yifeng Qiu ; Assignee Lumileds LLC ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11404903/en?oq=US11404903.html (дата обращения: ДД.ММ.ГГГГ).