Nightstick Rechargeable Multi-Function Tactical Flashlight Flashlight Lumens: 800 | 350 | 140 Beam Distance: 205 m | 157 m | 99 m Candela: 10,765 | 6,182 | 2,460 Drop Rating: 2 m Water Rating: IP-X7 Flashlight Run-time: 2 | 3.75 | 8.75 Strobe Run-time: 3.25 Light Source: LED Case Material: Aircraft-grade 6061-T6 Aluminum w/Type III Hard Anodized Finish Power Source: Rechargeable Lithium-ion Back-up Power Source: (2) CR-123 Lithium Primary Batteries (not included) Length: 6.25 in (159 mm) Handle Diameter: 1.035 in (26 mm) Head Diameter: 1.25 in (32 mm) Weight: 6.1 oz (173 g)