This is the next step in EDC. The defender is ROBUST, with a drop rating of 1.5m!

The dual back buttons offer a variety of easy to get to modes, a winner!

The unit can sit under 2m of water (more than most pools).

A superb runtime, a great 484m ANSI throw! The defender even has a reversible clip.

All this alongside the 1800 lumen max output, it's a great unit!

Info from Acebeam

Features:
Utilizes a Luminus SFT40 LED, blazing 1800 Lumens max output, 484 meters max throw.
Dual tail switches enable intuitive operations for tactical applications.
A highly efficient constant current circuit provides a stable output for up to 22 hours.
Included one Acebeam ARC18650H-310A Rechargeable 18650 Lithium-ion Battery (with Built-in USB Type-C Charging Port), 
Compatible with 2 x CR123 / RCR123 batteries.
Four brightness levels and Strobe mode for a wide variety of tasks.
A low-voltage warning reminds when battery replacement is needed.
Stainless steel two-way clip included
Made of durable aircraft-grade aluminum.
Premium type Ⅲ hard-anodized anti-abrasive finish.
Customized TIR optic lens provides efficient light transmission for a smooth, throw-heavy beam
Toughened ultra-clear glass lens with anti-reflective coating.
Waterproof and dustproof rating following IP68 (2 meters submersible).
Impact resistant to 1.5 meters.

Specifications:
Powered by 1 x 18650 Battery (Acebeam ARC18650H-310A):
Low: 50lumens; 22hours; 105meters; 2756CD
Med: 260~50lumens; 5hours~8min; 184meters; 8464CD
High: 900~700~260~50lumens; 3min~1hour+45min~4min~8min; 321meters; 25,760CD
Turbo: 1800~700~260~50lumens; 50sec~1hour+23min~4min~8min; 484meters; 58,564CD
Strobe: 1800~700lumens; 3hour+40min; 484meters; 58,564CD （Frequency Range: 6Hz~10Hz）

Max. output 1800 lumens 
Max. beam distance: 484meters/1587.9feet/529yards
Max. runtime: 22 Hours 
Peak beam intensity: 58,564cd

Size: 5.17'' x 1.26'' x  0.91'' / 131.2 x 32 x 23.2 mm.
Weight: 108.7g (3.83oz) (Excluding battery), 156.2g (5.51oz) (Including battery)