The KE-HLFC185 is a 250 lumen LED focus control headlamp which also features motion activation so it can be turned on and off with the wave of your hands. The motion sensor can be activated/de-activated by the user. The focus control allows you to adjust the light from a focused beam to flood mode. A battery pack on the back of the headlamp features a red LED safety light for added visibility. The red LED safety light has three settings: steady on, flashing, or off. Water resistant IPX4 rated. Run time: High=12 hours; Low=250 hours. Brightness: High=250 lumens; Low=25 lumens. Beam distance: High=465ft; Low=144ft. Battery powered: 3 AA batteries are included. Size: 2″H x 1.8″W x 2.7″L. Weight without batteries: approx. 5 oz.