Slap Darkness In The Face. Extreme conditions call for extreme measures. The rechargeable SureFire Maximus handles them by delivering an amazing 1,000 lumens of MaxVision BeamA(R)-shaped light that can be dialed down, lumen by lumen, to give you just the amount you need. Keep it on lower settings for closer work, preserving your dark-adapted vision and extending the runtime. Turn up the power to light any environment. Its large, knurled dial permits output control with one hand - even when gloved or numbed by cold. You can also rotate the light assembly up or down to aim the beam right where you want it. An SOS beacon provides an extra margin of safety for those who thrive on danger. Features Virtually indestructible LED emitter regulated to maximize output and runtime One-hand output adjustment from 1 to 1,000 lumens Precision reflector produces a wide, smooth beam optimized for your field of vision Light assembly rotates up and down 90 degrees Built-in SOS beacon can run for days on end Tough, lightweight magnesium body with durable black finish IPX4-rated: Resistant from splashing water, no matter the direction Built-in fuel gauge indicates battery charge level Comfortable no-chafe headband with moisture-wicking Breath-O-PreneA(R) forehead pad Includes long-life lithium-ion rechargeable battery with wall (AC) and car (DC) chargers