The Acebeam Defender P16 Gray is Acebeam's first dual-tail-switch tactical flashlight. A Luminus SFT40 6500K LED behind a custom TIR optic pushes 1,800 lumens and throws 484 meters (529 yards) from a compact 18650 body, and the included Acebeam ARC18650H-310A cell charges through its own built-in USB-C port — no cradle or proprietary cable needed.
Two tail switches let you cycle four brightness levels plus strobe without changing your grip, which is what makes the Defender P16 work equally well as a handheld duty light or a rail-mounted weapon light. With an IP68 rating, 1.5 m impact resistance, a stainless steel strike bezel and a Type III hard-anodized aircraft aluminum body, it is built for law enforcement, emergency response, patrol and outdoor use.
Acebeam Defender P16 Gray – Specifications
| LED |
Luminus SFT40, 6500K |
| Max Output |
1,800 lumens |
| Max Beam Distance |
484 m / 1,588 ft / 529 yd |
| Peak Beam Intensity |
58,564 cd |
| Max Runtime |
22 hours (Low) |
| Modes |
Low 50 lm · Med 260 lm · High 900 lm · Turbo 1,800 lm · Strobe |
| Battery |
1 × Acebeam ARC18650H-310A 18650 with built-in USB-C charging (included); also runs 2 × CR123A / RCR123 |
| Switches |
Dual tail switches |
| Optic |
Customized TIR lens, toughened AR-coated glass |
| Body |
Aircraft-grade aluminum, Type III hard-anodized |
| Bezel / Clip |
Stainless steel strike bezel, stainless steel two-way pocket clip |
| Waterproof |
IP68, submersible to 2 m |
| Impact Resistance |
1.5 m |
Acebeam Defender P16 Gray – Frequently Asked Questions
What is the maximum output of the Acebeam Defender P16 Gray?
The Acebeam Defender P16 Gray produces a maximum of 1,800 lumens on Turbo, with a peak beam intensity of 58,564 candela and a maximum throw of 484 meters (529 yards).
What battery does the Acebeam Defender P16 Gray use?
The Acebeam Defender P16 Gray runs on a single 18650 lithium-ion cell and ships with the Acebeam ARC18650H-310A. It is also compatible with two CR123A or RCR123 cells if you need a non-rechargeable backup option.
Does the Acebeam Defender P16 Gray come with a battery, and is it rechargeable?
Yes. The Acebeam Defender P16 Gray includes the ARC18650H-310A 18650 battery, and that cell has a USB-C charging port built into the battery itself, so you charge it with any standard USB-C cable rather than a separate charger.
Is the Acebeam Defender P16 Gray waterproof?
The Acebeam Defender P16 Gray carries an IP68 rating and is submersible to 2 meters. It is also rated for 1.5 meter impact resistance.
How long does the Acebeam Defender P16 Gray run on one charge?
Maximum runtime for the Acebeam Defender P16 Gray is 22 hours on the 50-lumen Low mode. Higher modes step down over time to manage heat: Turbo starts at 1,800 lumens for about 50 seconds before regulating down, and Strobe runs roughly 3 hours 40 minutes.
What makes the Acebeam Defender P16 Gray a tactical flashlight?
Dual tail switches let you change modes and go straight to strobe without shifting your grip, and the stainless steel strike bezel, IP68 sealing and hard-anodized aluminum body handle duty abuse. The Acebeam Defender P16 Gray can be carried in the hand or mounted on a firearm rail, which is why it suits patrol, self-defense and emergency work.
How many lumens is bright enough for a tactical light?
For most duty and self-defense use, 500–1,000 lumens is plenty indoors, while outdoor searching benefits from more output and more throw. The Acebeam Defender P16 Gray covers both ends with a 50-lumen Low for close work and an 1,800-lumen Turbo that reaches 484 meters.
Where can I buy the Acebeam Defender P16 Gray?
You can buy the Acebeam Defender P16 Gray at Going Gear, an authorized Acebeam dealer. Every light ships new with the full Acebeam warranty.
