Adam Hall 19" Led Sensor Rack Light 1 U White

Professional rack light with patented Smart Motion sensor technology
Strip with 18 LEDs
Timer control and adjustable sleep mode dimmer
Continuous dimming
Memory function
Including power supply with strain relief

This rack light with patented Smart Motion sensor technology features a strip of 18 ultra-bright white LEDs to deliver consistent illumination across the entire rack width. It is switched on by pressing and holding the power button; a motion sensor activates the LEDs. They remain lit for the period configured in the timer, and if no further movement is detected, switch automatically into sleep mode with adjustable dimmer. In this way, the energy-saving motion sensor light rack is the ideal choice for practical, adjustable rack lighting.
https://www.adamhall.com/shop/pt-en/19-inch-rack-accessories/19-inch-rack-lights/15696/87451-smart