Features:
*LED Type: 5* Cree XM-L T6,life up to 100000hours; 
*Max output: 4500lumens
*Beam: Aluminum Reflector for focused beam
*Lens: Anti-shattering ultra clear lens, anti-scratching and anti-slip
*Finish: HA Type III
*Waterproof: IPX7
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*Modes: Max-Mid-Min-Strobe-SOS(100%-45%-10%-strobe-sos))
*Battery:3PCS 18650
*Runtime :Max output 60minutes with 2pcs 18650.(you can use three 18650 batteries ,after fit a extension tube.
*Size:L:300 mm /31mm(tail)/27mm(Tube)/63mm(head)
  Weight:466.5g(excluding batteries).
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Operation:

*Press tail switch for turning light on/off.
*With the light turned on, gently press(no click)the tail cap pushbutton switch, the     brightness level will switch between three modes (Max,Mid,Min,Strobe,SOS).
*Remove the tail cap, insert the batteries with the positive ends toward the head of the light, replace the tail cap.