LED ceiling light (3600lm, RGB, dimmable) for 6-8 tatami mats, with remote control. Please note that the perceived brightness may vary depending on the ceiling height, room size, and installation environment. It has been opened once for operational testing. We have confirmed that it works correctly with the wall switch and the included remote control. Please note that we have not tested the operation with a smartphone app. The condition is very good. To prevent any issues, cancellations and returns are not accepted. Please understand this before purchasing.