It is recommended to use a battery with a protective plate
<br /> *This hunting light features Cree XP-E green color LED. 450 lumens green light output. Effective range 150-250 yards beam. As it doesn't use lens or filters, It produces 100% green light which allows you to see more clearly and farther. It also comes with a pressure switch and rifle mount. Put this hunting light on your rifle today. Your next hunting trip will be easier and more enjoyable!<br/> 
<br />*Red and green is least visible for animals but also hard for human to see. Typically hunters use green light for hog hunting while use red light for coyote fox and varmint hunting.<br/>
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<br />Brand: UniqueFire <br/>
<br />Model: HS-802 <br/>
<br />Emitter Brand/Type: Cree XR-E<br/> 
<br />Emitter BIN: R2-WC<br/>
<br />Light Color:Green <br/>
<br />Voltage Input: 3.6V ~ 9V Suitable for battery type:18650 (not included)<br/> 
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<br />1 Mode: High<br/> 
<br />Switch Type: Clicky (Clickie)<br/> 
<br />Switch Location: Tailcap (Tail-cap) <br/>
<br />Typical Battery Runtime: ~2 hours (manufacturer rated)<br/> 
<br />Circuitry: 1200mA Total Current Output, Digitally Regulated<br/> 
<br />Lens: Coated Glass Lens<br/> 
<br />Reflector: Aluminum Smooth/SMO Reflector <br/>
<br />Carrying Strap: Strap Included <br/>
<br />Size(mm): 183(Length)x49.5(Head Diameter)x26.5(Body Diameter)<br/> 
<br />NetWeight(g): 235 <br/>
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<br />Contents in Package:<br/> 
<br />1x green hunting light flashlight<br/> 
<br />1x pressure switch<br/> 
<br />1x scope mount <br/>
<br />1x barrel mount<br/>