Item Type: Flashlight Material: Aviation Magnesium Aluminum Alloy Color: As Picture Shown Product Length: Approx. 138mm/5.4in Head Diameter: Approx. 40mm/1.6in Tail Diameter: Approx. 34mm/1.3in Weight: Approx. 205.0g/7.2oz Light Source: L2 LED White Light Color Temperature: 6000K-6500K Diving Depth: 5080m/164.0262.5ft (predicted value) Diving Lighting Range: 200m/656.2ft Waterproof: IPX8 Cover Treatment: Hard Anodizing luminous flux: 1600lm Gear Position: Stepless dimming, long press the switch (brightness changes from strong light to low light, until flashing twice is the lowest brightness, long press again to change from weak light to strong light) (You can control the brightness according to your requirements) Switch Type: Central Waterproof Magnetic Control Push Switch Reflective Cup: Aluminum Alloy Light Cup Applicable Battery: 26650x1/18650x1 (without battery) Package List 1 x Flashlight 1 x Hand Strap 2 x O Loop 1Deep waterproof, professional underwater operation flashlight, portable and easy to carry. 2Accompanying with the battery level display, you can observe the battery level at any time. 3Aluminum alloy light cup lamp holder more concentrated light, durable and stable. 4Stepless dimming, can be adjusted to the best brightness according to the surrounding environment. 5Professional waterproof function, can be used for underwater work, diving depth of 5080m/164.0262.5ft.