Streamlight PolyTac X Dual Fuel Professional Light Clam Pack Black. It features Dual Fuel innovation that gives you the flexibility to use more than one battery type so you'll always have power when you need it. Specifications for Streamlight PolyTac X Dual Fuel Professional Light: Manufacturer: Streamlight Flashlight Application: Outdoor Beam Color: White Light Output: 35 - 600 lumens Battery Life: 3-56 Hours Bulb Type: LED Beam Distance: 275 m Length: 5.65 in Weight: 4.4 oz Water Resistance Level: IPX-7 Additional Features: Strobe Quantity: 1 Battery Type: CR123A Condition: New Features of Streamlight PolyTac X Dual Fuel Professional Light: Intinsically safe multi-function rechargeable flashlight. TEN-TAP Programming allows the choice of three programs: high/strobe/low; high only; or low/medium/high. Solid State power regulation provides maximum light output throughout battery life. Dual Fuel. Uses 2 CR123A lithium batteries; also accepts Streamlight rechargeable 18650 battery. Removable multi-position pocket clip. High-impact super-tough nylon polymer with Rocky Stipple texture for a sure grip. O-ring sealed glass lens IPX-7; waterproof to 1m for 30 minutes. 3m impact resistance tested. NFPA - meets requirements of NFPA 1971-8.6 (2007). Limited Lifetime Warranty. Package Contents: Streamlight PolyTac X Dual Fuel Professional Light Batteries Streamlight 88600: PolyTac X Dual Fuel Professional Light Clam Pack Black