Advanced Focus System™ enables you to use this rechargeable LED light as a far-reaching spotlight, or as an up-close floodlight by simply sliding the bezel with your thumb. Multiple power settings deliver 1,600 lumens to 600 meters for 4.5 hours on high power or 280 lumens to 250 meters for seven hours on low power. Smart Light Technology™ provides eight advanced functions – Morse code, boost, power, low power, dim, blink, SOS and defense strobe. An efficient heat-sink system keeps the seven LEDs cool. Water-resistant. Includes four rechargeable D NiMH batteries, power cord and recharging station. Length: 16.2". Weight: 50.8 oz.