Fenix HP35R 4000 Lumen USB-C Rechargeable Headlamp - Long Reach Beam

Our review of the Fenix HP35R finds it is best for serious outdoor users and rescue teams who need a dependable, very bright headlamp with versatile beam options. The single biggest reason to buy is its combination of a 4000 lumen maximum output and a long 492 yd spotlight reach, which delivers usable illumination at distances few headlamps of this size achieve. The removable battery pack and durable IP66-rated construction make the HP35R practical for extended field use, while the rotary control keeps operation straightforward even when wearing gloves.

Key Features

• 4000 lumen output: Provides an extremely powerful main beam that cuts through dark, open spaces so you can see far ahead for search, navigation, or night work.
• Spotlight, floodlight and red light: Three distinct lighting modes allow selection between long-distance throw, wide-area illumination, or low-visibility red for night vision preservation.
• Rotary switch control: A simple rotary switch cycles modes and brightness settings, offering intuitive operation when quick changes are required.
• Removable battery pack: The battery pack detaches to serve as a backup power source for phones and radios, adding practical utility on extended outings.
• Durable IP66 build: Water resistance and a 2 m impact rating mean the headlamp tolerates rough job-site use and adverse weather.
• Included accessories: Ships with USB-C cable, cable clips, extension cable, and organizer so it is ready to charge and integrate into kit.

Who It's For

The HP35R is aimed at search and rescue personnel, outdoor professionals, and serious campers or hikers who need both long-throw and wide flood illumination in a single headlamp. Its high output and removable battery that doubles as a power bank make it a good tool for multi-day trips, field work, and emergency response where reliable light and ancillary power matter.

Casual users who want a lightweight, low-cost headlamp for occasional backyard use or short hikes should look elsewhere, as customers frequently note the unit is noticeably heavy and its capabilities exceed simple recreational needs.

Pros & Cons

Pros

• Exceptionally bright with a long 492 yd spotlight reach for distance visibility.
• Versatile lighting options including flood and red light for different tasks and night vision preservation.
• Removable battery pack provides backup power for devices during extended outings.
• Robust IP66 rating and impact resistance for demanding environments.

Cons

• Relatively heavy compared with lightweight recreational headlamps, which can be tiring on long treks.
• Some users report brief runtime on the highest outputs, so expect to manage battery use on long nights.

Specifications

Brand	Fenix
Maximum output	4000 lumens
Beam reach	492 yd (spotlight)
Light modes	Spotlight, floodlight, red light
Recharge	USB-C charging cable included
Durability	IP66 waterproof, 2 m impact resistance
Contents	Headlamp, USB-C cable, 2 cable clips, extension cable, organizer

Our Verdict

The Fenix HP35R is a solid choice for professionals and serious outdoor users who need a powerful, versatile headlamp with a long reach and a removable battery that can act as a power bank. It represents good value when the priorities are maximum output, durability, and flexible lighting modes, but its weight and short top-end runtime mean casual users or ultralight hikers should consider lighter alternatives.

Frequently Asked Questions

Can the HP35R charge phones?
The removable battery pack can be used as a backup power source to charge phones and small electronics via its USB output.

Is the headlamp waterproof for outdoor use?
Yes, it has an IP66 rating, so it resists heavy rain and splashes but should not be submerged.

How do you change modes?
Turn the rotary switch to cycle between spotlight, floodlight and red light, and press the rotary face to cycle brightness levels within the selected mode.