Fading Dome Lights, ? Options

[Kamakaze]

Im looking for a way to make my dome lights fade. Is there anywhere where i can buy, or how to make this circuit (truthfully, i'd rather buy something because i dont RTFM)

Im working on fiberglassing my headliner and i want my plexiglass piece to fade in and out as my domelight

[K-ESD]

Looks like a geometry coloring book.

i was thinking about putting a fairly large capacitor across the dome light
that would be lil easier than making the circuit above, i don't know how well it would work tho...

[Kamakaze]

Looks like a geometry coloring book.

i was thinking about putting a fairly large capacitor across the dome light
that would be lil easier than making the circuit above, i don't know how well it would work tho...

a capacitor???? how work that work explain, cause that does sound easier