BC40GT 1. Mainly designed for outdoor searching, guarding, hunting, etc. 2. Light aero grade aluminium alloy construction. 3. Twisting the head for quick mode changing with four different levels. 4. 2750 lumens output. 5. Combining new crystal transparent technology and new digital optical system design, it has beam distance up to 347 meters. 6. Adopting high-efficiency digital constant current circuit, it has run time up to 65 hours. 7. It has over heating protection system to ensure long run time and avoid over heating damage. 8. Battery protection of reversed polarity and over discharge. 9. Double-sided coating with ultra-hard and transparent mineral glass lens. 10. U-shape tail switch for quick light up and tail standing. 11. HA III grade hard anodized surface treatment for corrosion and scratch resistance. 12. IPX-8 waterproof (submersible up to 2 meters) 13. Anti-drop protection distance of one meter. Specifications LED: CREE XHP50 MAX output: 2750 lumens Reflector: orange-peel reflector Lens: anti-scratch and super-hard mineral glass with double-sided coatingBody material: aero grade aluminium alloy Surface treatment: HA III grade hard-anodized treatment Battery: 2*18650 batteries or 4*CR123 batteries Switch: Tactical tail switch Package Include: 1 x Jetbeam BC40GT Flashlight 1 x O-ring 1 x Lanyard 1 x User Manual Gift= 2 PCS 18650 Rechargeable 3400mAh Li-ion battery ， 1 pcs BatteryJETBEAM