A special verison of D11 R5 flashlight with slotted piston. A right size Tritium vial that glows in dart can fit into the slotted piston, making the flashlight easy to be located in absolute darkness! Tritium vial does not come with the light.

The new and improved NITECORE D11 is an advanced single AA-based flashlight and successor to the venerable NITECORE D10. The NITECORE design team have added several new features to the D11, giving it notable advantages over its predecessor the D10: premium Cree XP-G R5 LED, custom designed highly efficient alloy reflector, revamped D11 microcontroller circuit, more rugged appearance and better tactile feel. The NITECORE D11. Exceeding all expectations.

Features:

• Unique electronic-controlled Smart-PD switch, proven to be very reliable;
• Use 1 X AA battery or other cells of the same size
• Infinitely Variable Digital-controlled Brightness System;
• Intuitive and simple user interface;
• Defensive Strobe and emergency SOS functionality;
• Made from military grade aluminum alloy, extremely strong;
• Compact size and light weight, suitable for EDC (every day carry);
• Mil-Spec Type III Hard Anodized finish;
• Resistant to impact by dropping according to US MIL-STD-810F;
• Waterproof to IPX-8 standard;
• Broad-voltage fully-regulated circuit, compatible with one AA battery or other cells of the same size; (batteries should not exceed 50mm in length or it may interfere with its operation).
• Premium high efficiency CREE XP-G R5 LED (Light Emitting Diode), with lifetime of 50,000 hours;
• Max output 145 lumens;
• Extended runtime;
• Metal reflector;
• Ultra clear impact-resistant optical lens;
• Ability to tail stand for use as a candle light.
• Length: 89mm, Diameter: 19mm
• Weight: 46g( without battery )
• Accessories: Lanyard, backup waterproof “O” ring

Runtime:

• Maximum output 145 lumens, for about 1.5 hours
• Minimum output 3 lumens, for about 100 hours