EASTSHINE Bundle:Nitecore EF1 Explosion-Proof Flashlight CREE XM-L2 U3 830 Lumens 295 Yards Beam Distance EDC Flashlight for Hazardous Industries by NL189 3400mAh 18650 Battery EB182 Battery Box 1. Excellent Explosion-proof Performance: NITECORE EF1 Flashlight introduces aerospace grade aluminum alloy to its body construction, and achieves a body thickness of 3mm,20% thicker than ordinary flashlights. Together with 10mm-thick epoxy resion explosion-suppressive optical lens, provide safe and umcompromised illumination,Mark: Ex d II C T5 Gb. 2. Excellent Usage for Different Industry: NITECORE EF1 can be used hazardous industries including land and marine petroleum exploitation,petrochemical and chemical industies. It can also be used indoor/outdoor operations, such as factories, stations, stadiums,railway tunnels culverts for electiry, smelting,railway,mine,port and civil construciton industries. 3. Excellent Opearation Performance: NITECORE EF1 sliding control switch provides rapid and accurate one-hand brightness adjustment.0-Standby Mode,1-Low, 2-Mid,3-High. Advanced Temperature Regulation technology enables dynamically adjustment to output performance according to body temperature. 4. Excellent Lighting Performance: NITECORE EF1 utilizes CREE XM-L2 U3 LED, Maximum output to 830lumens, can last 150 Hours by Nitecore 2600mAh Battery, Provide 270 Meters beam distance, intensity and power efficiency above similar porducts. 5. Excellent Security Performance: NITECORE EF1 Anti-Rolling design for better loss prevention, U-shaped tailcap design For optimal tail-stand capability, Impact resistant to 1.5 Meters, Waterproof accordance to IP67 1.5M submersible, withstands extreme outdoor conditions.