The Sensor II comes with a single high-powered cob LED producing 130 lumens when used as a torch. While in power cut mode the top LED produces 15 lumens of light which will give ample light in an emergency and prolong the life of the inbuilt rechargeable lithium battery. Removing the Sensor II from its charging cradle will activate the top cob led in 15-lumen mode. To use as a torch push the button once and you will have a 130-lumen torch, fully charged and ready to go when you need it. The Sensor II has 2 modes. In motion sensor mode, a PIR motion sensor will activate the 5 led, 40 lumens night light when movement is detected. Dawn to dusk mode, with a push of the button, (while in the charging cradle), you can toggle dawn to dusk mode, where the 5 led night light will emit a low 0.3 lumen glow all night, and then when motion is detected increase to 40 lumens providing a safely lit area.