SOFIRN HS41 4000 Lumens Rechargeable Headlamp

Black / 5000K

$37.99 USD $55.99 USD

SOFIRN HS41 4000 Lumens Rechargeable Headlamp

$37.99 USD $55.99 USD

4,000 Lumens-Max Output
325m Max Beam Distance
5000K or 6500K CCT Options
Up to 29.5 Days Moonlight Runtime
Detachable 21700 Battery
USB-C Rechargeable & Power Bank
Magnetic Tailcap & Pocket Clip
IP68-Waterproof
1m Impact Resistant

Shipping Policy

USA local warehouse: Ships locally with estimated delivery in 3–5 days.

If the USA local warehouse is out of stock: We will prioritize direct fulfillment from an overseas warehouse by default. Delivery may take 7–14 days.

Contact me first if the USA local Warehouse is out of stock.

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Tech Specs

Max Output: 4,000 lumens
Max Beam Distance: 325 meters
Light Source: 4 × SST20 LEDs
CCT: 5000K or 6500K
Battery: Detachable flat-top 21700 battery, 5000mAh
UI / Operation: Electronic side switch with Moonlight, Eco, Low, Medium, High, Turbo, Strobe, SOS, and Beacon
Charging: USB-C charging, up to 5V/3A
Power Bank: USB-C discharge function for charging mobile devices
Optics: Smooth reflector and toughened glass lens; 25° spotlight / 96° flood beam angles
Dimensions: 115 × 30.1 × 29 mm
Weight: 79g without battery
Material: AL6061-T6 aluminum alloy
Durability: IP68 waterproof and 1-meter impact resistant
Carry Styles: Headlamp, magnetic work light, or pocket-clip light

Light Performance

Mode	White Light
Mode	Moonlight	Eco	Low	Medium	High	Turbo	Strobe	SOS	Beacon
Output	1 lm	10 lm	150 lm	500 lm	1,500 lm	4,000 lm	4,000 lm	500 lm	4,000 lm
Runtime	29.5 days	172 h	11 h	3 h 40 min	3 h 10 min	3 h	6 h	11 h	13.5 h
Beam Distance	3 m	19 m	71 m	123 m	212 m	325 m	—	—	—
Peak Intensity	3 cd	86.1 cd	1,278.8 cd	3,783.8 cd	11,300 cd	26,475 cd	—	—	—

What’s in the Box

HS41 Headlamp
21700 Rechargeable Battery, 5000mAh
Adjustable Headband
USB-A to USB-C Charging Cable
Pocket Clip
Spare O-Rings
User Manual

User Manual

View the product manual online or download the PDF.View / Download Manual ↓

Product Details

Features
1. Powerful & Waterproof: The Sofirn HS41 headlamp delivers an impressive 4000 lumens of max output with a 325-meter throw, ensuring exceptional visibility in the darkest environments. With its IP68 waterproof and impact-resistant build, this headlamp is perfect for hiking, search and rescue, or demanding outdoor adventures.

2. Extended Runtime: Equipped with a high-capacity 21700 5000mAh rechargeable battery, the HS41 provides long-lasting performance. Enjoy up to 29.5 hours on moonlight mode, making it an ideal companion for overnight camping, night shifts, or emergency preparedness.

3. Power Bank Function: More than just a headlamp, the HS41 also functions as a USB-C rechargeable flashlight and power bank, allowing you to charge your phone, GPS, or other devices in the field. Stay connected and safe even during long outdoor trips.

4. Hands-Free Versatility: Featuring a magnetic tail cap and sturdy pocket clip, this headlamp can easily attach to metal surfaces or gear for hands-free illumination. Whether you're working on repairs, camping in the wild, or exploring caves, the HS41 adapts to your needs.

5. Dual Color Temperature Choices: Choose between cool white for maximum brightness and beam distance, or neutral white for softer, more natural color rendering with better visibility in fog or rain. The dual options let you customize your lighting experience for different environments.

6. Note: To prevent accidental activation, when not using the flashlight or carrying it outdoors, please loosen the tailcap to disconnect the battery or activate the lockout mode (if available).

Specifications

Emitter: 4 * SST-20 LEDs

Battery Option: 1x 21700 5000mAh flat-top battery

Working Voltage: 2.7V-4.2V

Input: Type-A to type-C

Maximum Charging Current: 3A

Smooth reflector

Lens Type: Toughened glass lens

Size: 30.1* 29* 115mm

Weight: 79g(without a battery)

Spotlight beam angle: 25¡ã, floodlight beam angle: 96¡ã

Magnetic tail cap