Nitecore SRT 3 DEFENDER User Manual

ALL-ROUND Flashlight Expert

Features

Purpose-designed for law enforcement, self-defense and outdoor
·
applications.
The world's first line of flashlights to feature third generation SSR
·
(smart selector ring) technology
Smoothly and rapidly select brightness levels and function by rotating a
·
smart selector ring
Utilizes the latest CREE XM-L (XM-L2 T6) LED for a maximum output of
·
up to 550 lumens
Second generation of 'Crystal Coating Technology' along with 'Precision
·
Digital Optics Technology' provide extreme reflector performance
Boasts a peak beam intensity of 4,500cd and a throw distance of up to
·
134 meters (ANSI FL1)
High efficiency circuit board provides up to 200 hours runtime on lowest
·
output level
Equipped with unique multi-colored (red and blue) tactical / signaling
·
lights
Infinite brightness adjustment from 0.1 to 550 lumens
·
Six rapidly switchable functions to select from
·
Reverse polarity protection
·
Stainless steel titanium-plated clip
·
Stainless steel retaining ring protects core components from damage
·
Toughened ultra-clear mineral glass with anti-reflective coating
·
Constructed from aero grade aluminum alloy
·
Robust HAIII military grade hard-anodized
·
Waterproof in accordance with IPX-8 (two meters submersible)
·
Impact resistant to 1.5 meters
·
Tail stand capability
·

Dimensions

Length: 100mm (3.9")
117mm (4.6")(with AA extension tube)
Head diameter: 25.4mm (1")
Tube diameter: 24.3mm (0.96")
Weight: 73g (2.57oz)(without battery)
87g (3.07oz)(with AA extension tube)
(without battery)

Battery Options

Primary Lithium battery
Rechargeable Lithium battery
With AA extension tube:
Primary AA battery
Rechargeable AA battery
Rechargeable Li-ion battery
Primary AA Lithium battery
Primary LiFePO4 battery
Output & Runtime
1×NL166(RCR123)
TURBO LOWER
550 * 0.1
*
LUMENS LUMENS
45 150
min h
m
134
(Beam Distance)
4500
cd
(Peak Beam Intensity)
IPX-8, 2

Accessories

Quality holster,
removable clip,
AA extension tube,
lanyard, spare tail cap
button and spare O-ring
TYPE Nominal voltage Compatible
CR123 3V Y (Recommended)
RCR123 3.7V Y (Recommended)
TYPE Nominal voltage Compatible
AA 1.5V Y (Recommended)
AA 1.2V Y (Recommended)
14500 3.7V Y (Recommended)
L91 1.5V
14500 3.2V
1×CR123 1×AA
TURBO LOWER TURBO
330 * 0.1 * 180 *
LUMENS LUMENS LUMENS
1
h
200 1
h h
15
min
m m
105 79
(Beam Distance) (Beam Distance)
2800 1550
cd
(Peak Beam Intensity) (Peak Beam Intensity)
m
1.5
(Impact Resistant)
m
(Waterproof AND Submersible)
Thanks for purchasing NITECORE!
®
User Manual
NOTICE
The above data has been measured in accordance with the international
flashlight testing standards ANSI/NEMA FL1 using one x 3.7V 650mAh
Nitecore RCR123 battery, one x 3V 1550mAh Nitecore CR123 battery
and one x 1.2V 2500mAh AA battery under laboratory conditions. The
data may vary slightly during real-world use due to battery type,
individual usage habits and environmental factors.
*
Infinite brightness adjustment varies from 0.1 to 550 lumens and is
manually adjusted by rotation of the Smart Selector Ring. Subsequently,
runtimes will vary anywhere from 45 minutes to 150 hours depending on
chosen level of output.

Battery Installation

Insert one (R)CR123 battery with the positive pole pointing forward
(toward the light head).
NOTE:
1. Ensure batteries are inserted with the positive (+) end pointing to the
head. The SRT3 will not operate with incorrectly inserted batteries.
2. Ensure when turning the SRT3 on, the beam is directed away from the
eyes of people or animals.

Switching ON/OFF

To switch ON: Press the button on the tailcap until a "click" is heard.
To switch OFF: Press the button on the tailcap a second time until a
"click" is heard.

Momentary Illumination

Momentary illumination can be achieved by switching the flashlight off
and then half pressing and holding the tail switch. Release switch to turn
the light off.

Adjusting Output

Y
Y
With the light turned on, slowly rotate the Smart Selector Ring (adjacent
to the bezel) in a counter-clockwise direction to cycle through the
following brightness levels: beacon -> SOS -> police warning signal ->
blue mode -> red mode -> lower mode -> infinite brightness modes ->
turbo mode -> strobe mode. These modes may be cycled through in
LOWER
reverse by rotating the Smart Selector Ring in a clockwise direction.
0.1
*
Note: When using the SRT3 in infinite brightness mode, runtime will
LUMENS
200
h
cd