This is a remote control for LED lighting made by DAIKO. After checking the specifications of the lighting fixture, it appears to be compatible with models starting with "YDCL~". I will add photos of the specifications (photos 7 and 8). - Brand: DAIKO - Remote control functions: On, Off, Brightness adjustment, Steady light, All lights on, Sleep timer 30 minutes. - Mounting holder: Included - Batteries: 2 AAA batteries (included when delivered) - 2 screws for holder installation This was included with the lighting fixture purchased in the summer of last year (2025). As shown in photos 5 and 6, I will send an unopened item. I am also listing another identical item. If you wish to purchase both, I will offer them to you for 2,000 yen, so please let me know. ☺︎ I would like to ask those who understand that this is a home-stored item to purchase it. Thank you.