An automatic wardrobe or cupboard light (ITC call it a closet light) that switches on when the door opens and off when it closes, so there's no separate switch.
Plunger switch turns the light on when the door opens, off when it closes
Low heat LED output reduces fire risk in a packed wardrobe
Uses 95% less power than incandescent, with a 30,000 hour lifespan
Low profile black housing gives direct, downward light
Simple screw fitting from the back, in 3/4in cabinetry