This is a roof color illumination kit compatible with the 40 series Alphard and Vellfire. It has a built-in memory function, so it lights up with the pattern that was last turned off, even when the engine is turned off! Maximize the use of your roof illumination, which used to turn off every time you turned off the engine! Enjoy your favorite illumination patterns with easy operation. You can switch patterns by pressing and holding the COLOR switch for 5 seconds. *See the instruction manual for details. There are two modes: ・Illumination automatically changes every 5 seconds (random color change) ・Illumination automatically changes every 5 minutes (random color change) You can always revert to the original lighting with the operation. *Cannot be used on vehicles without the original LED roof illumination. *The memory function may be changed if the engine is started with the door open. Installation is done with couplers, so no wiring modifications are required. *Interior panel remover is not included. *Warranty is for 3 months.