Part number can be found on a sticker.
LG EAY64749001 Power Supply for OLED55B8PUA.BUSWLJR
Part Number: EAY64749001
Board Number: EAY64749001 / EAX67858001(1.6) / LGP55C8-180P
Part Type: Power Supply
Manufacturer Part Number 1: LG EAY64749001
Known Models
OLED55B8PUA BUSWLJR
OLED55C8PUA AUSWLJR,BUSWLJR
OLED55E8PUA BUSWLJR
OLED55E8PLA