Built in motion sensor whenever movement is detected the lumilife solar wall light will emit a bright light providing 100 lumens via 16 leds perfect for use in doorways paths patios decking and areas where mains lighting is at a premium built to stand the test of time fully waterproof and made to last 50 000 hours this is one of the most robust wall lights youll find it also features a lithium ion battery which is a further testament to its build quality easy to install no wiring