Streamlight Argo HP Luxeon Headlamp with the bulb life of an LED and 7x more brightness... SAVE BIG! The brightest, longest-lasting headlamp you can own! With the Streamlight Argo HPLuxeon Headlamp you get a genuine high flux Luxeon bulb that packs a full 1 watt of intense light, up to 33 lumens... 7x brighter than standard LEDs. Plus all the other functions that make Streamlight the choice of serious adventurers. More: One watt Super High-Flux Luxeon LED with digitally controlled brightness levels: 33 lumens or 12 lumens; Solid Sate Power Regulation provides maximum light output throughout battery life... 4 3/4 hrs. run time at regulated maximum intensity plus 3 1/2 additional hrs. of declining usable output, 20+ hours on low mode; 90 degree tilting head puts the light wherever you need it; Ultra-compact,Impact-resistant ABS housing, lightweight for maximum comfort; Includes both rubber and elastic head straps for use with hard hats; Powered by two 3V CR123A lithium batteries... LED battery life indicator built in; Approx 2 1/4 x 3 x 2 1/4", 4 oz.; Light up the night with one of the finest flashlights going. Order Today! Streamlight Argo HP Headlamp LED Luxeon