Features: •Cree XM-L2 LED (maximum output:1200 Lumens with a Single LED) •LED lumen output:1200/674/342/106/8 •ANSI FL-1 lumen: 1020/573/290/90/7 •Runtime: 1.5/3.9/9/30/180+ hours •Battery: two 18650 rechargeable or four CR123A primary batteries •Material: Type III Hard anodized aircraft-grade Aluminum •Lens: Optical-grade glass lens with anti-reflective coating (both sides) •Reflector: Aluminum Deep reflector with smooth coating (SMO) •New one-piece flashlight head design (from the top of the knurling area to the battery contact point behind the head). This allows optimal LED heatsink capability and operational reliability. The flashlight head is not sealed and user can gain access to the inside of the lens and reflector. •New durable hard anodization coating Available in HAIII finish(40 μm in thickness and 350-380 HV in hardness). •The tail-stand tail-cap receives a new durable protective coating. The package also come with a para-cord lanyard with darken holding clip that fits in the tail-cap lanyard hole. The controller ring also receives the new durable protective coating. •The Flashlight head and the body are o-rings and square-rings sealed for operating in harsh and wet environments. Reverse battery polarity protection has been implemented on the battery tray for each battery channel. The water-proof tail-cap now uses stainless steel 304 mounting screws with hex heads. •Length: 6.5 inches (16.5cm) •Diameter (head): 2.5 inches (63cm) •Diameter (body): 1.6 inches (41cm) •Weight: 12.1 ounces (excluding battery) (345 grams) Included accessories: lanyard, spare o-ring, diffuser filter, holster, battery magazines Operation: Dial the operational ring to turn the flashlight on/off, adjust between the five brightness levels, and access the three hidden modes (strobe, fast beacon, sos). To access the hidden blinking modes, turn the ring from the turbo mode to the off/standby mode, then back to the turbo mode.