SureFire Auto Adjusting Dual Fuel LED Combat Flashlight Black. Our CombatGrip is designed and built specifically for tactical use in conjunction with a pistol while our proprietary IntelliBeam technology automatically and seamlessly adjusts the virtually indestructible LEDs output to the optimal setting anywhere from 15 to 1500 lumens based on your environment so theres never any hesitation or fumbling to manually set the output. Its precision microtextured reflector creates a smooth far-reaching hybrid beam with a bright central area and enough spill light to help you maintain awareness of your surroundings. Two simple clicks of the tailcap will override the auto-adjustment function for maximum output on demand. The P1RZ-IB-DF's click-on/off tailcap switch provides ergonomic foolproof activation even under the most stressful conditions. With a high-strength aerospace aluminum body that is Mil-Spec hard anodized for extreme resistance to abrasion and corrosion the P1RZ-IB-DF thrives in the harshest environments imaginable. Specifications for SureFire Auto Adjusting Dual Fuel LED Combat Flashlight: Manufacturer: SureFire Flashlight Application: Combat Color: Black Finish: Hard Anodized Fabric/Material: Machined Aluminum/Stainless Steel Beam Color: White Light Output: 15 - 1500 lumens Charger Type: Micro-USB Bulb Type: LED Beam Distance: 255 m Bezel Diameter: 1.39 in Lens Material: Glass Lens Finish: Clear Length: 5.6 in Weight: 1.6 oz Water Resistance Level: IPX-7 Quantity: 1 Battery Type: 18650 Features of SureFire Auto Adjusting Dual Fuel LED Combat Flashlight: IntelliBeam technology automatically and seamlessly adjusts light output from 15 to 1500 lumens depending on environmental conditions. Easy instant activation" Press or click tailcap switch to select IntelliBeam mode return to off and press or click again within two seconds to select high-output only CombatGrip facilitates a secure hold when used in conjunction with a handgun Can be powered by either a single SF18650B lithium-ion rechargeable battery or two 123A lithium primary batteries Precision micro-textured reflector creates smooth hybrid beam to help you positively identify what's ahead and what's around you Click-on/off tailcap switch provides ergonomic foolproof activation even under the most stressful conditions Mil-Spec hard anodized aluminum body tempered window and O-ring seals make the P1RZ-IB-DF rugged and durable Package Contents: SureFire Auto Adjusting Dual Fuel LED Combat Flashlight High-Performance 3.6V 18650 lithium-Ion Rechargeable Battery MICRO-USB Port SureFire P1RZ-IB-DF: Auto Adjusting Dual Fuel LED Combat Flashlight Black