Fenix 039-607 Tactical LED Flashlight - 1600 Lumens, USB-C Rechargeable 21700 Battery, IP68 Waterproof, Dual Tail Switch

When darkness becomes a threat, a reliable tactical light is not a luxury—it's a necessity. The Fenix 039-607 answers the call with 1600 lumens of blinding brightness and a beam that reaches 419 meters, turning night into day at the press of a switch. Built on the legendary Fenix toughness, this flashlight is engineered for those who demand performance without compromise.

Who is it for

Law enforcement, security professionals, and serious outdoor enthusiasts who need a dependable light for high-stakes situations. It's equally at home on a duty belt, in a bug-out bag, or mounted on a rifle. If your life or mission depends on seeing clearly in the dark, this is your tool.

Main features

• Blinding 1600-lumen output with a 419-meter beam distance, powered by a Luminus SST40 LED for exceptional throw and clarity.
• Dual tactical tail switch: instant access to momentary-on, constant-on, and strobe for disorienting threats.
• Runs on a single 21700 Li-ion battery (included) with USB Type-C charging built into the battery—no separate charger needed. Also compatible with 18650 cells via an adapter (not included).
• IP68-rated waterproof and dustproof: submersible to 2 meters for 30 minutes, so rain, mud, and puddles are non-issues.
• Aircraft-grade A6061-T6 aluminum body with premium HAIII hard-anodized finish resists scratches, corrosion, and impacts up to 1 meter.
• Six lighting modes including strobe, with a maximum runtime of 80 hours on the lowest setting for extended use.

Specifications

• Max brightness: 1600 lumens
• Max beam distance: 419 meters
• LED: Luminus SST40
• Battery: 1x 21700 Li-ion (included, USB-C rechargeable) or 1x 18650 with adapter
• Max runtime: 80 hours (Low mode)
• Material: A6061-T6 aluminum, HAIII hard-anodized
• Waterproof: IP68, submersible to 2 meters
• Impact resistance: 1 meter
• Switch: Dual tactical tail switch
• Lens: Toughened ultra-clear glass with anti-reflective coating
• Head diameter: 40 mm, body diameter: 25.4 mm
• Voltage range: 3.0V - 4.2V

Tips

To maximize battery life, use the included 21700 cell and recharge via USB-C when convenient. For momentary signaling, lightly press the tail switch; for constant-on, click fully. The strobe mode is accessible from any state with a quick double-press—practice to build muscle memory. Store the flashlight in a cool, dry place when not in use, and occasionally lubricate the O-rings with silicone grease to maintain the waterproof seal.