The Sofirn HS41 4000 Lumen 325m Throw Rechargeable Headlamp with 21700 Battery is a high-performance, versatile light designed for outdoor activities, ideal for camping, hiking, and emergency use. For example, its 4000-lumen output can illuminate a path up to 325 meters, ensuring reliable visibility. With built-in USB-C charging, a side e-switch interface, and a durable build, it offers practical functionality. Featuring a 1-year warranty, this Sofirn HS41 for Outdoor Use suits campers, hikers, and outdoor enthusiasts.
Powerful Illumination for Outdoor Use
The Sofirn HS41 features four Luminus SST-20 LEDs, delivering a maximum output of 4000 lumens with a beam throw of 325 meters, powered by an included 21700 Li-ion battery (5000mAh). It offers multiple modes, controlled by a side e-switch, with the following lumen outputs and runtimes:
- Turbo: 4000 lumens for approximately 1 minute (steps down after initial output)
- High: 500 lumens for approximately 3.5 hours
- Medium: 150 lumens for approximately 12 hours
- Low: 1 lumen for approximately 29.5 days
- Strobe: 4000 lumens (runtime not specified)
- SOS: 4000 lumens (runtime not specified)
- Beacon: 4000 lumens (runtime not specified)
The headlamp charges via a built-in USB-C port, taking about 2-3 hours with a 5V/3A charger, and includes a power indicator (green for 70-100% charge, red for 30-69%, flashing red for less than 30%). It has an IP68 waterproof rating, suitable for harsh conditions, and features Advanced Temperature Regulation (ATR) technology, adjusting brightness to prevent overheating, though prolonged use on Turbo may generate heat, requiring careful handling.
Durable and Compact Design
The Sofirn HS41 is constructed from A6061-T6 aluminum alloy with a Type III hard-anodized finish, offering durability for outdoor conditions like camping or hiking. It weighs 79g without the battery (approximately 156g with the included 21700 battery), making it comfortable for extended wear. The headlamp features a detachable design for use as a handheld flashlight, a magnetic tail cap, and an adjustable headband, though its weight with the battery may require periodic adjustment during long use.
Designed for Outdoor and Everyday Use
The Sofirn HS41 4000 Lumen 325m Throw Rechargeable Headlamp with 21700 Battery for Outdoor Use is tailored for campers, hikers, and outdoor enthusiasts needing a reliable, hands-free light for nighttime activities, emergencies, or work. For example, its 29.5-day low mode ensures prolonged runtime for extended trips, while the detachable design allows versatile use, though the side e-switch UI requires practice to cycle through nine modes (click to turn on/off, hold to adjust, double-click for strobe), and the magnetic tail cap may not suit all surfaces. The USB-C charging and IP68 rating enhance its reliability, but users should avoid direct eye exposure due to its intensity. The HS41's affordable price, included 21700 battery, and multifunctional design make it a practical choice for outdoor scenarios, offering a balance of power and convenience, though users should plan for heat management and UI familiarity.
Key Features and Specs
The Sofirn HS41 4000 Lumen 325m Throw Rechargeable Headlamp with 21700 Battery is built for performance. It features four Luminus SST-20 LEDs with a 4000-lumen output, 325m throw, multiple modes (Turbo, High, Medium, Low, Strobe, SOS, Beacon), a 5000mAh 21700 battery (included) with up to 29.5 days runtime on low, USB-C charging (about 2-3 hours with 5V/3A), IP68 waterproofing, 1-meter impact resistance, Advanced Temperature Regulation (ATR), reverse polarity protection, a side e-switch, a magnetic tail cap, and includes a headband, USB-A to USB-C cable, and manual, with a 1-year warranty for reliability. Its weight of approximately 156g (with battery) makes it a practical choice for outdoor users. This headlamp excels for illuminating trails, work areas, or emergencies during camping, hiking, or outdoor use, providing reliable, versatile performance for various scenarios.
Specifications Overview
- Type: Rechargeable Headlamp
- Purpose: Camping, Hiking, Emergency Use
- LED: 4x Luminus SST-20
- Output: Up to 4000 Lumens
- Beam Throw: 325m
- Modes: Turbo, High, Medium, Low, Strobe, SOS, Beacon
- Runtimes:
Turbo: 4000 lumens for approximately 1 minute (steps down after initial output)
High: 500 lumens for approximately 3.5 hours
Medium: 150 lumens for approximately 12 hours
Low: 1 lumen for approximately 29.5 days - Battery: 1x 5000mAh 21700 Li-ion (Included)
- Charging: USB-C (about 2-3 hours with 5V/3A)
- Water Resistance: IP68
- Impact Resistance: 1m
- Dimensions: Not specified
- Weight: 79g (Without Battery), Approximately 156g (With Battery)
- Warranty: 1 Year
Package Contents
The package includes:
- Sofirn HS41 Headlamp
- 1x 5000mAh 21700 Li-ion Battery
- Headband
- USB-A to USB-C Cable
- User Manual
Note: Ensure the headlamp is turned off after use to prevent accidental activation, which could drain the battery; the side e-switch can be sensitive. Use the included 21700 battery with proper polarity (positive terminal toward the head), and remove the insulating paper before first use or charging. The IP68 rating protects against submersion up to 1 meter for short periods but is not suitable for diving; avoid prolonged deep submersion. Handle with care during Turbo mode to avoid burns due to heat buildup, and do not shine the light directly into eyes due to its intensity. Store in a dry place to maintain reliability, and use a 5V/3A charger (not included) for optimal charging. Unscrew the tail cap to remove the insulating paper before initial use.
