We recommend the SOFIRN HS41 for hikers and campers who want serious light and long runtime from one headlamp. Price $37.99; code SOFIRN-SEBASTIAN gives free shipping. Best for hikers, campers and night-shift workers who want a bright, long-running headlamp that can also charge a phone.
A 4,000-lumen headlamp with a 21700 battery, USB-C and power bank use.
We recommend the SOFIRN HS41 for hikers and campers who want serious light and long runtime from one headlamp. Four SST-20 LEDs deliver up to 4,000 lumens with a 325 m throw, and the included 5,000 mAh 21700 battery runs up to 29.5 hours on moonlight mode. It charges over USB-C, doubles as a power bank for a phone or GPS, and is rated IP68 in an aluminum body that survives a 1 m drop. A magnetic tail cap and pocket clip make it a handy hands-free work light, and the 5000K neutral white version favors natural color. At $37.99 it is a standout value.
What we like
- Serious output
- Long runtime
- More than a headlamp
- Tough and waterproof
- Hands-free flexibility
Keep in mind
- Full-power size
- Turbo is for bursts
- Loosen or lock out when packed
The details that matter.
Manufacturer specifications for the configuration reviewed.
- Emitters
- 4 x SST-20 LEDs, 5000K neutral white (6500K cool white also offered)
- Maximum output
- 4,000 lumens
- Throw
- 325 m
- Beam angles
- Spotlight 25 degrees; floodlight 96 degrees
- Battery
- 1 x 21700, 5,000 mAh flat-top, included; up to 29.5 hours on moonlight mode
- Charging
- USB-C with 3A maximum; reverse charging as a power bank
- Size / weight
- 30.1 x 29 x 115 mm; 79 g without battery
- Body
- A6061-T6 aluminum, 1 m drop rated
- Water rating
- IP68
- Mounting
- Headband, magnetic tail cap and pocket clip
- Model / SKU
- HS41, Black, 5000K · HS41-SST20-BK-5K-2
Who should buy the HS41
The HS41 is for hikers, campers, hunters and shift workers who want one headlamp that can do everything from reading in a tent to lighting a trail from a distance. It also doubles as a flashlight and a power bank.
Light output and beams
Four SST-20 LEDs produce up to 4,000 lumens and a 325 m throw. The spotlight beam angle is 25 degrees and the floodlight is 96 degrees, so you can pick a tight beam for distance or a wide one for close work. The 5000K neutral white version favors natural color rendering.
Battery and charging
A 5,000 mAh flat-top 21700 battery is included and runs up to 29.5 hours on moonlight mode. Charging is by USB-C at up to 3A, and the light can also charge other devices as a power bank.
Build and mounting
The A6061-T6 aluminum body is rated for a 1 m drop and IP68 waterproofing. A magnetic tail cap and a sturdy pocket clip let you attach the light to metal surfaces and gear for hands-free work.
Our buying advice and the SOFIRN code
Choose the HS41 for a bright, long-running, versatile headlamp at a modest price. Use code SOFIRN-SEBASTIAN for free shipping at SOFIRN.
Why we like it.
Serious output
Four SST-20 LEDs reach 4,000 lumens and a 325 m throw, with both spot and flood beams.
Long runtime
A 5,000 mAh 21700 battery is included and runs up to 29.5 hours on moonlight mode.
More than a headlamp
USB-C charging at up to 3A and reverse charging let it act as a power bank for a phone or GPS.
Tough and waterproof
An A6061-T6 aluminum body rated for a 1 m drop and IP68 waterproofing handle rough use.
Hands-free flexibility
A magnetic tail cap and pocket clip let you attach it to metal surfaces and gear.
A few things to consider.
Full-power size
At 79 g without the battery it is a bigger headlamp than ultralight models.
Turbo is for bursts
As with any 4,000-lumen light, the highest output is a short-run mode; lower levels give the long runtimes.
Loosen or lock out when packed
To prevent accidental activation, loosen the tailcap or use lockout mode when carrying it.
Get the HS41 4,000-Lumen Rechargeable Headlamp.
Hikers, campers and night-shift workers who want a bright, long-running headlamp that can also charge a phone. Check the current price and configuration with SOFIRN.
Your SOFIRN reader offer.
Free shipping with code SOFIRN-SEBASTIAN at the official SOFIRN store.
See the SOFIRN code, terms & redemption stepsA few good questions.
What is the discount code for the SOFIRN HS41 4,000-Lumen Rechargeable Headlamp?
Our partner reports SOFIRN-SEBASTIAN for free shipping at us.sofirnlight.com. The owner-supplied tracked link opens the SE1 product page. Open the shop link, enter SOFIRN-SEBASTIAN at checkout, and confirm the free shipping in the order summary. It is a permanent partner code that never expires.
How bright is the SOFIRN HS41?
Up to 4,000 lumens with a 325 m maximum throw.
What battery does it use?
An included 5,000 mAh 21700 flat-top battery, charged by USB-C.
Can it charge my phone?
Yes. It works as a power bank through its USB-C port.
Is it waterproof?
It is rated IP68 and its aluminum body is rated for a 1 m drop.
How much does it weigh?
79 g without the battery.
About this review
SOFIRN official product page and public product data, with our editorial assessment. Product details checked October 25, 2026 against SOFIRN's official product listing. Shop the official SOFIRN store. Images courtesy of the manufacturer. Our editorial standards.
