I had surprisingly forgotten about this haptic lamp that actually sits in one of our bedrooms. We originally came across them in a smart B+B in Arboyne and initially were flumoxed by them.

Haptic Lamp in Off position

Haptic Lamp in On position

The clue to its use is on the label that says <-On-Off->

Haptic nature revealed by the fact that the lamp can be easily operated with one hand in the dark.