OPPLE Thailand team held a project seminar in Bangkok, Lebua on March 27th 2019, which attracted more than 100 outstanding designers from areas of Thailand. It is worth mentioning that famous lighting designers Miss Larochai and Dr. Acharawan participated in the seminar as special guests. OPPLE together with designers shared typical engineering cases and latest lighting design concept during the seminar. This event greatly enhanced the popularity of OPPLE in the advanced engineering field.