Super bright, multimode headlamp: 1W spotlight and 3W COB floodlight. 270-degree floodlight and 1w Spotlight: 350 Lumens with 1.5hr Runtime. Waterproof rating: IPX4. Rear button: press to turn on and filter through 4 modes; 1. Floodlight 100%. 2. Flood 40%. 3. Spotlight100%. 4. Spotlight 40%. Press again to turn off headlamp. Hold down rear power button to activate simultaneous strobe function. Flood light: High/100% = 350L, Runtime 2.5hrs. Low/40% = 150L, Runtime 5hrs. Spotlight: High/100% = 150L, Runtime 4hrs. Low/40% = 60L, Runtime 8hrs. Simultaneous Strobe: 350L, Runtime 8hrs. Front button: Activate or deactivate motion sensor. Motion sensor is applicable to the mode of operation during activation. Built in battery indicator turns from red to green when fully charged. Motion sensor function is easy to use, switch between modes at the push of a button. When activated, simply wave your hand front of the sensor to turn flood light on and off.