If anyone is interested in learning about the specifications of lamps and ballasts used in Korea, I have found this reseource that gives official specifications:
https://www.eom.co.kr/menu/load/lighting/lamp/00.htmIf you do not speak Korean, you will need to find a way to translate the webpages as you navigate. However, the text does look very hard to read. When carefully examining the types of lamps and ballasts listed, they seem to somewhat closely follow nomenclature used for Japanese lamps.
