This is a kit that allows the factory roof illumination of the 30 series Alphard/Vellfire to be constantly lit while driving. It's easy to install with a simple coupler connection by removing the rear air conditioning panel, so you won't damage the original wiring. You use the factory switch for operation, so it doesn't look like an aftermarket addition. To prevent any unusual noises from vibration during use, it was packaged in bubble wrap before shipping (see photo 10).