... focused beam*Lens: Anti-shattering ultra clear lens, anti-scratching and anti-slip *Finish: Hard Anodized *Modes: Max-Mid-Min-Strobe ... ,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. High power cree xml t6 led flashlight Rechargeable