Nitecore SRT6i

Nitecore SRT6i

Nitecore SRT6i

$138.49 SGD
$199.00 SGD $138.49 SGD
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The Nitecore SRT6i rechargeable flashlight delivers up to 2,100 lumens on Turbo and a maximum rated beam distance of 510 metres. Its Smart Selector Ring gives you direct selection of three brightness levels, Lockout and TAC modes. These are fixed selections, rather than the stepless dimming found on some other SRT models.

The included NL2150HPi battery charges inside the flashlight through USB-C. Battery choice matters: the SRT6i requires a Nitecore 21700i-series cell rated above 15A, and conventional 21700 or 18650 batteries are incompatible. Turbo is peak output, with thermal regulation adjusting brightness during use.

  • Mid is rated at 300 lumens for 7 hours 30 minutes with the included battery; real-world runtime varies with conditions.
  • Two CR123/RCR123 cells work with the battery magazine at reduced Turbo output. Never charge them inside the light.
  • The included 5,000mAh battery takes approximately 3 hours 15 minutes to charge with a 5V/2A supply.
  • IP68-rated to 2 metres, with 2-metre impact resistance.
  • Nitecore SRT6i black tactical flashlight, angled view
  • Nitecore SRT6i reflector and LED close-up
  • Nitecore SRT6i flashlight upright side view
  • Nitecore SRT6i flashlight angled toward tail controls
  • Nitecore SRT6i U-shaped tail cap design
  • Nitecore SRT6i water resistance, impact protection and construction features
  • Nitecore SRT6i Smart Selector Ring lighting settings
  • Nitecore SRT6i one-handed ring and button operation
  • Nitecore SRT6i USB-C charging port beneath protective cover
  • Nitecore SRT6i dual tail buttons and two-stage turbo and strobe controls
  • Nitecore SRT6i detachable pocket clip
  • Nitecore SRT6i dual tail buttons and two-stage turbo and strobe controls
  • Nitecore SRT6i advanced temperature regulation infographic
  • Nitecore SRT6i strobe-ready mode demonstration
  • Nitecore SRT6i internal battery and reverse-polarity protection diagram
  • Nitecore SRT6i technical data chart
  • Nitecore SRT6i maximum output demonstration
  • Nitecore SRT6i long-range beam demonstration
  • Nitecore SRT6i reinforced strike bezel detail
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Max Lumens of 2100

70 hours of runtime

510 meter throw
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Product details

1

Best For

Portable task lighting and long-range observation.

Performance Specifications

Max Lumens2100 lm (Turbo)
Max Beam Distance510 m
Peak Intensity65200 cd
LED TypeHigh-performance white LED
Beam ColorWhite

Build Quality

Dimensions163 mm long; 40 mm head; 25.8 mm tube; 31 mm tail
Weight167 g, battery excluded
MaterialAero-grade aluminum alloy
FinishHA III hard-anodized
Waterproof RatingIP68; 2 m submersible
Impact Resistance2 m

Battery, Charging & Runtime

Battery TypeNITECORE 21700i; compatible CR123/RCR123 as specified in manual
Battery Capacity5000 mAh NL2150HPi
Replaceable BatteryYes
Charging TypeUSB-C; charge 21700i only
Charging TimeApproximately 3 hours 15 minutes at 5V/2A
Maximum Runtime70 hours at 30 lm

Modes & Interface

Brightness levels3
Lighting Modes30/300/2100 lm; Strobe; Tactical; Lockout
Strobe ModeYes
User InterfaceSmart Selector Ring and dual tail buttons; Strobe Ready
Button TypePush-buttons

Accessories & Mounting

Mount OptionsClip, lanyard and holster

Special Features

Thermal RegulationAdvanced Temperature Regulation (ATR)

Product Identification & Warranty

Barcode726084355835
Warranty Period60-month manufacturer repair warranty; terms and exclusions apply

What's in the Box

  • SRT6i light
  • NL2150HPi 5000 mAh battery
  • CR123 battery magazine
  • Holster
  • Clip
  • Lanyard
  • Spare O-ring
  • USB-C cable
Download the Manual Here

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Frequently asked questions

Will a normal 21700 battery work?

No. Use a Nitecore 21700i-series battery rated above 15A, such as the included NL2150HPi. Conventional 21700 and 18650 cells are incompatible.

Can I use CR123 batteries if the rechargeable battery runs out?

Two CR123 or RCR123 cells can be used with the battery magazine, but Turbo output is reduced. Never try to charge those cells inside the SRT6i.

How is the included battery charged?

Leave it installed and connect a USB-C cable to the flashlight. Charging the 5,000mAh battery takes about 3 hours 15 minutes with a 5V/2A supply.

Is the Smart Selector Ring continuously dimmable?

No. It selects three brightness levels, plus Lockout and TAC modes; it is not the stepless control used on some other SRT models.

What runtime should I expect for regular use?

Mid is rated at 300 lumens for 7 hours 30 minutes; Low at 30 lumens for 70 hours. The 2,100-lumen Turbo figure is peak output, with thermal regulation affecting real use.

Can it handle rain or an accidental drop into water?

It is IP68-rated, with a specified 2-metre submersion rating and 2-metre impact resistance.

Are all products authentic and genuine?

Yes—all items are factory-original units sourced through trusted channels. We never sell replicas or knockoffs.

How do I verify a product’s authenticity?

Genuine items include authenticity markers—scratch-off codes, serial numbers, official packaging. Verify codes on the manufacturer’s site. We only list authentic gear.

Do your products come with warranty coverage?

As these products are shipped globally and sourced through various channels, manufacturer warranties may vary by region. However, we stand behind everything we sell—if an item arrives defective or develops an issue shortly after delivery, we’ll work with you to resolve it quickly and fairly. Our goal is to ensure you receive fully functional, authentic products—no compromises.

How long does shipping take?

Estimated total delivery time, including order processing, is generally 10–17 working days, depending on the product, supplier, shipping method and destination.

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