Sofirn HS40 User Manual

Sofirn HS40 Manual
Thank you for purchasing Sofirn products.
Contact us@sofirnlight.com or eu@sofirnlight.com if you need assistance.
The HS40 is a powerful headlamp as well as a versatile tool lamp. It utilizes a powerful SST40 LED to
provide a nice beam for working, running, hiking and more. Powered by one 18650 battery and featuring a
simple but elaborated user interface, HS40 is your reliable partner for every day use.
Safety Instructions
 HS40 is a powerful headlamp. Never point the beam directly at a person, animal or moving vehicles.
Doing so could cause retinal damage. Please do not allow children to play with it. Strobe mode may
cause seizure in persons with photosensitive epilepsy.

Operating the headlamp for a long time in Turbo or High mode will warm it up. And to protect it from
over-heating, it steps down lower mode automatically. This is normal.

HS40 is intended to be used with an 18650 rechargeable battery.

When installing the battery, make sure the anode (+) side always faces towards the head/LED.

Unscrew the tail cap half a turn to avoid unwanted activation during transport. It also prevents
the battery from draining while the headlamp is in standby.

Avoid hitting or dropping the headlamp.
Sofirn Limited:
Shenzhenshi Jinba Technology Co.,Ltd
Tel:
+86-755-23440047
Fax: +86-755-23440141
Web:
www.sofirnlight.com
www.sofirn.cn
E-mail:
us@sofirnlight.com
eu@sofirnlight.com wholesale@sofirn.cn
Address: 1/F to 9/F, 1st Building, NO.110 Tenglong Industrial Center, Guanlan Street, Longhua New District,
Shenzhen 518000, China

Sofirn HS40 Specifications

General

Brand	Sofirn
Model	HS40
Category	Flashlight
Language	English

Summary

Safety Instructions

General Safety Precautions

Covers beam direction, epilepsy, overheating, battery installation, and physical protection.

Product Specifications

Emitter, Battery, and Dimensions

Details the SST40 LED, battery type, voltage, dimensions, weight, and headlamp body material.

Construction and Durability Features

Describes the aerospace-grade aluminum body, toughened glass lens, and anti-abrasive finish.

Automatic Stepdown and Circuit Protection

Explains stepdown for overheating, battery installation protection, and low power indication.

Battery Specifications and Installation

Battery Type and Compatibility

Specifies the rechargeable lithium-ion battery type, its dimensions, and compatibility.

Battery Installation Guide

Instructions for inserting the 18650 battery, noting the anode (+) orientation.

Operation Instructions

Group 1 (Stepped Mode) Operations

Details ON/OFF, brightness changes, moonlight shortcut, Turbo, Strobe, and electronic lockout for Group 1.

Group 2 (Ramping Mode) Operations

Explains ON/OFF and stepless brightness control between Moon and Turbo modes for Group 2.

Switching Between Mode Groups

Instructions on how to toggle between Stepped Mode (Group 1) and Ramping Mode (Group 2).

Troubleshooting and Maintenance

Maintenance Recommendations

Covers disassembly warnings, battery care, thread lubrication, and O-ring replacement for waterproofing.

Common Troubleshooting Issues

Addresses flickering, intermittent shine, or failure to turn on, suggesting battery, dirty contacts, or insulation sticker checks.