This product uses motion sensor light, with three (3) leds, which detect the movement of the person reaching for the glass in the dark. For best user experience, the light source is low enough so as to not be, intrusive and it is placed on the side away from the bed. There are two models, one for the right and one for the left bedside.
The glass has a safety cap in order to prevent spilling, if it is accidentally dropped.
Easily adaptable to every bedside table with average resistance.