Sofirn ST2

Contents

Sofirn ST2 3-in-1 Flashlight User Manual

Model: ST2 | Brand: Sofirn

Introduction

The Sofirn ST2 is a versatile, high-performance 3-in-1 work light designed for various applications, offering powerful white light, a dedicated red light, and a UV light function. Its rotatable head, durable construction, and multiple carrying options make it an ideal tool for professionals and outdoor enthusiasts alike.

Key features include:

  • Max-Performance 3-in-1 design with White, Red, and UV light.
  • Up to 3000 Max Lumens output with a 270-meter throw.
  • 90° rotatable head with 6 precise 15° click-stops for flexible illumination.
  • Long-lasting 5.5-hour continuous runtime (using 2x 3800mAh 18650 batteries).
  • Convenient USB-C rechargeable battery.
  • Durable CNC-machined Unibody AL6061 Housing.
  • IPX6 waterproof rating and 1-meter impact resistance.
  • Side Omni-Control Hub with Hall-Effect Switch and Touch Button for intuitive operation.
  • Multiple carry styles: clip, magnetic base, and lanyard.

What's in the Box

Upon opening your Sofirn ST2 package, you should find the following items:

  • Sofirn ST2 Flashlight
  • USB-C Charging Cable
  • Lanyard
  • User Manual (this document and a printed version)
  • 2x 18650 3800mAh Batteries (pre-installed or separate, depending on package)
Contents of the Sofirn ST2 flashlight box, including the flashlight, USB-C cable, lanyard, and user manual.
Figure 1: Package Contents

Setup

1. Battery Installation

The Sofirn ST2 uses two 18650 3800mAh rechargeable batteries. Ensure they are inserted with the correct polarity as indicated inside the battery compartment. If the batteries are pre-installed, remove the insulating film before first use.

2. Initial Charging

Before first use, fully charge the flashlight. Connect the provided USB-C cable to the flashlight's charging port and to a suitable USB power source (e.g., wall adapter, computer USB port). The battery indicator will show charging status.

Image showing the Sofirn ST2 flashlight being charged via USB-C, highlighting the 5.5-hour continuous runtime and 18650 batteries.
Figure 2: USB-C Charging and Battery Life

The battery indicator provides feedback on the charge level:

  • Solid green: 75%-100%
  • Flashing green: 50%-75%
  • Solid red: 25%-50%
  • Flashing red: 1%-25%
  • Solid orange: UV light working
Diagram illustrating the battery level indicator colors: solid green (75-100%), flashing green (50-75%), solid red (25-50%), flashing red (1-25%), and solid orange (UV light working).
Figure 3: Battery Level Indicator

3. Attaching Lanyard/Clip

Attach the included lanyard to the designated loop on the flashlight for secure carrying. The flashlight also features a built-in clip and a magnetic base for versatile attachment options.

Image showing three compatible carry styles for the Sofirn ST2: attaching to a metal surface via magnet, clipping to a belt, and hanging with a lanyard.
Figure 4: Compatible Carry Styles

Operating Instructions

The Sofirn ST2 features a Side Omni-Control Hub with a Hall-Effect Switch and a Touch Button for easy operation.

Diagram of the Side Omni-Control Hub, showing the Hall-Effect Switch for selecting white, red, or UV light, and the Touch Button for ON/OFF and stepless dimming.
Figure 5: Side Omni-Control Hub

1. Power ON/OFF and Brightness Adjustment (Touch Button)

  • Press once: Turns the flashlight ON or OFF.
  • Long press: Activates stepless dimming when the light is ON. Release to set brightness.

2. Switching Light Modes (Hall-Effect Switch)

Rotate the Hall-Effect Switch to select between White Light, Red Light, and UV Light modes. The switch has distinct positions for each light type.

3. White Light Modes

When White Light is selected via the Hall-Effect Switch:

  • Normal operation: Use the Touch Button for ON/OFF and stepless dimming (Low to Turbo).
  • Turbo: Double-click the Touch Button from ON to activate Turbo mode. Double-click again to return to the previous brightness.
  • Strobe: Triple-click the Touch Button from ON to activate Strobe mode. Press once to turn off.
  • ECO: From OFF, long press the Touch Button to activate ECO mode (1 lumen).

4. Red Light Modes

When Red Light is selected via the Hall-Effect Switch:

  • Normal operation: Use the Touch Button for ON/OFF and stepless dimming (Low to Turbo).
  • Red light is ideal for preserving night vision or signaling.
Image showing the Sofirn ST2 flashlight emitting red light, with icons for ECO (1lm), Turbo (130lm), and Strobe (130lm) modes.
Figure 6: Red Light Modes

5. UV Light Modes

When UV Light is selected via the Hall-Effect Switch:

  • Normal operation: Use the Touch Button for ON/OFF.
  • High/Low: The UV light typically operates in High (1240mW) and Low (400mW) modes. A short press of the Touch Button may cycle between these, or a long press may activate stepless dimming for UV. Refer to the detailed PDF manual for exact UV mode switching.
  • UV light is useful for revealing fluorescent traces, stains, and hidden markings.
Image showing the Sofirn ST2 flashlight emitting UV light onto a mechanical part, with indicators for Low (400mW) and High (1240mW) UV light modes.
Figure 7: UV Light Modes

6. Rotatable Head

The flashlight head can be rotated 90 degrees, featuring six precise 15-degree click-stops. This allows you to switch from forward to side lighting quickly and direct light exactly where needed without changing your grip.

Diagram illustrating the 90-degree rotatable head of the Sofirn ST2 flashlight, showing 15-degree click-stops and over 30,000 swivel tests passed.
Figure 8: 90° Rotatable Head

Maintenance

  • Cleaning: Wipe the flashlight body with a clean, soft cloth. For optical surfaces, use a lens cleaning cloth.
  • Battery Care: Recharge the batteries regularly, especially if the flashlight will not be used for an extended period. Store the flashlight with partially charged batteries to prolong battery life.
  • Water Resistance: The ST2 is IPX6 waterproof, meaning it is protected against powerful water jets. Avoid submerging the flashlight. Ensure the USB-C port cover is securely closed to maintain water resistance.
  • Impact Resistance: The flashlight is designed to withstand impacts up to 1 meter. However, avoid unnecessary drops to prevent damage.

Troubleshooting

If you encounter issues with your Sofirn ST2 flashlight, please refer to the following common solutions:

  • Flashlight not turning on:
    • Ensure batteries are correctly inserted with proper polarity.
    • Check if batteries are charged. Recharge if necessary.
    • Verify that the battery insulating film has been removed.
  • Light output is dim or flickering:
    • Batteries may be low. Recharge them fully.
    • Ensure battery contacts are clean.
  • Charging not working:
    • Check the USB-C cable and power source. Try a different cable or adapter.
    • Ensure the charging port is clean and free of debris.

For more detailed troubleshooting or persistent issues, please consult the full user manual PDF or contact Sofirn customer support.

Specifications

The following table details the performance parameters of the Sofirn ST2 flashlight:

Table of Sofirn ST2 parameters for White Light (Turbo, Low, Strobe), Red Light (Turbo, Low), and UV Light (High, Low), including output, runtime, distance, and intensity.
Figure 9: ST2 Performance Parameters
Sofirn ST2 Key Specifications
Feature Detail
Model Number Sofirn ST2
Light Source LED bulbs (SFT42R)
Max Lumen Output 3000+ Lumens
Lighting Distance 200-500 m (White Light Turbo: 270m)
Wattage 30W
Charger Rechargeable (USB Type-C)
Batteries Included Yes (2x 18650 3800mAh)
Continuous Runtime Up to 5.5 hours (White Light Turbo: 1min+5h 28min)
Waterproof Rating IPX6
Impact Resistance 1.0 m
Body Material Aluminum alloy (CNC-machined Unibody AL6061 Housing)
Focal Length Non-adjustable
Switch Mode High/Middle/Low (Stepless Dimming)
Function Self Defense, UV, Hard Light
Certification CCC, CE, FCC
Dimensions 113mm (L) x 46.3mm (W) x 22mm (H)
Weight 248g

User Tips

  • Check Contents: Upon receiving your flashlight, verify all components are present and in good condition.
  • Initial Charge: Always fully charge the flashlight before its first use to ensure optimal battery performance.
  • Versatile Use: The ST2's robust build and excellent illumination make it suitable for a wide range of activities, from professional inspections to outdoor adventures.
  • Magnetic Base: Utilize the magnetic base for hands-free operation when working on metal surfaces, such as under a car or in an electrical panel.
  • Red Light for Night Vision: Use the red light mode to preserve your night vision in dark environments, as it causes less pupil constriction than white light.
  • UV Light for Inspections: The UV light is effective for detecting hidden stains, fluids, or verifying authenticity of documents.

Warranty and Support

Sofirn products are manufactured to high-quality standards. For warranty information, please refer to the official Sofirn website or the specific warranty card included with your product. If you experience any issues or require technical assistance, please contact Sofirn customer support directly.

A detailed user manual in PDF format is available for download. You can find it at: Sofirn ST2 User Manual (PDF)

© 2023 Sofirn. All rights reserved.

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