Sofirn HS41 Headlamp 4000lm USB C Rechargeable SST20 LED Pro

Meet the Sofirn HS41 Headlamp, a compact, field-ready lighting ally that blasts 4000 lumens from four LUMINUS SST-20 LEDs. Built for explorers, climbers, and DIY enthusiasts alike, this headlamp blends extreme brightness with practical versatility, so you can see clearly in any environment without sacrificing comfort or safety.

Why the HS41 stands out

• Powerful, balanced beam—4x LUMINUS SST-20 LEDs deliver a bright 4000 lm output with a precise 25° spot for distance and a 96° flood for broad, close-up illumination. Switch seamlessly between long-range visibility and wide-area lighting as the task demands.
• Fast, user-friendly charging—USB-C recharge (Type-A to USB-C, 5V 3A input) with a maximum 3A charging current to shorten downtime between adventures. Standby drain is exceptionally low at ≤130 µA, so battery life isn’t wasted when you’re not actively using it.
• Built to endure—A6061-T6 aluminium alloy construction provides rugged durability and efficient heat dissipation. The HS41 is IP68 waterproof, ready to perform in rain, dust, and submersion conditions.
• Integrated battery and smart charge indicators—Includes a 21700 battery for extended runtime. A battery level indicator shows status for 5 seconds after switch-on: Green (70–100%), Red (30–69%), or flashing Red (<30%), so you know when to recharge before your next mission.
• Ergonomic design for long wear—Compact dimensions (30.1 x 29 x 115 mm) and a light 79 g weight (without the battery) keep wear comfortable during extended use, whether you’re camping, biking, or working hands-on in low light.

Performance and practical use

The HS41 supports three brightness modes—High, Medium, and Low—so you can tailor output to the task and conserve battery when full power isn’t necessary. Ideal scenarios include:

• Night hikes and trail running where you need both reach and peripheral illumination.
• Camping and outdoor photography where reliable hands-free light is essential.
• Workshop tasks, vehicle repairs, or cave exploration where focused spot lighting plus broad coverage improves safety and efficiency.
• Emergency preparedness kits, where quick, dependable charge and clear battery status matter most.

Reliability, in detail

• Emitter configuration: 4x LUMINUS SST-20 LEDs for a bright, consistent beam.
• Battery and runtime: Includes 1x 21700 battery; compatible with standard 21700 cells for extended life. Working voltage 2.7–4.2V ensures stable performance across charge levels.
• Durability and materials: Precision-machined from A6061-T6 aluminium alloy for rugged use and efficient heat management, ideal for outdoor adventures or demanding work environments.
• Waterproof and rugged: IP68 rating means protection against dust and full immersion, so rain, streams, or splashes won’t slow you down.

Technical snapshot

• Emitter: 4x LUMINUS SST-20 LEDs
• Battery: 1x 21700 (included)
• Working voltage: 2.7V–4.2V
• Input: USB-C (5V, 3A max)
• Maximum charging current: 3A
• Material: A6061-T6 aluminium alloy
• Water resistance: IP68
• Size: 30.1 × 29 × 115 mm
• Weight: 79 g (without battery)
• Beam angles: Spot 25°, Flood 96°

Who should consider the HS41

Outdoor enthusiasts who value high brightness in a compact form, professionals needing reliable hands-free lighting, and anyone who wants an all-weather headlamp with quick USB-C charging and clear battery status indicators. If you demand long runtimes, rugged build, and precise beam control, the HS41 is designed for you.

Certifications: This headlamp meets standard safety and compliance expectations with recognized certifications for performance and safety in many regions, ensuring you can rely on it across various activities and environments.