Ledlenser HF4R Signature Headlamp: 600 lumens with red, green and blue lighting at only 72 grams
Seventy two grams is roughly the weight of a small apple. That is the entire HF4R Signature, battery included, and it is the reason to choose this lamp over anything else in its output class. Most headlamps producing 600 lumens deal with battery bulk by hanging a pack off the back of your head. This one does not need to, and after a few hours on the trail the difference stops being a specification and becomes something you feel.
Why the slim format matters
Rear battery packs solve a weight distribution problem by creating a bulk problem. They snag on hoods, they make the lamp awkward to stow, and they add a second component that has to sit correctly on your head. Removing the pack leaves a single slim unit that sits flat against your forehead, packs down small and stays put during movement.
The adjustable headband is reflective, so you register as a visible object to anyone with a light on you even when the lamp is off or pointed away. On a road verge at dusk or a shared trail, that is a real safety feature rather than a styling detail.
A balanced beam from two white LEDs
Instead of a focusing mechanism, the HF4R Signature runs two separate white LEDs together to produce up to 600 lumens with a beam reaching 140 metres. One covers the wide near field, the other pushes distance, and the result is a fixed pattern that handles both at once.
The practical benefit is that there is nothing to adjust. You are not twisting a bezel to widen the beam for a technical step and narrowing it again afterward. The pattern that suits walking, camp work and general outdoor tasks is simply there from the moment you switch on, which suits people who want a lamp to disappear into the background rather than be operated. A stepless tilting lamp head still lets you place the beam where you want it.
Red, green and blue on board
Three dedicated coloured front lights sit alongside the white output. Red keeps your eyes adapted to darkness for map reading and camp tasks. Green suits situations where you would rather be less conspicuous to wildlife. Blue assists with tracking and specialist outdoor work.
On a lamp this small, the value is not having to carry a second filtered light to get them. Hunters, anglers and wildlife watchers who need colour options usually accept extra bulk in exchange, and this model removes that trade completely.
Power and runtime
An integrated 3.7V Li-ion rechargeable battery supplies the lamp, giving up to 35 hours in Low Power and around 2.5 hours at the highest settings. Charging runs through the USB-C compatible Magnetic Charge System and takes roughly 3 hours.
Memory Function returns the lamp to your last used mode. Backup Mode keeps light available as the battery empties. Temperature Control holds output stable, and a Transportation Lock stops the lamp waking up inside a pack. Battery and charge indicators with a low battery warning keep you ahead of a flat cell.
Sealing and durability
Protection is IP68, rated for continuous immersion rather than splashes, in a durable polycarbonate housing. Drop resistance is 2 metres and the operating range runs from -20°C to +40°C. For a lamp this light that is a serious specification, and it means the weight saving costs you nothing in weather resistance.
Features
- Premium rechargeable headlamp for hiking, camping, hunting, fishing and outdoor adventures.
- Maximum output of 600 lumens.
- Beam distance of up to 140 metres.
- Two white LEDs provide balanced flood and spot illumination.
- Dedicated red, green and blue front lights for specialised outdoor use.
- Red light helps preserve night vision.
- Green light is suitable for wildlife observation and hunting applications.
- Blue light assists with specialised tracking tasks.
- Integrated rechargeable Li-ion battery.
- Magnetic Charge System for fast and convenient charging.
- Up to 35 hours runtime on Low Power.
- Stepless tilting lamp head for precise beam adjustment.
- Memory Function recalls the last lighting mode used.
- Backup Mode extends usable runtime when battery levels are low.
- Battery and charge status indicators with low battery warning.
- Transportation Lock prevents accidental activation.
- Lightweight design weighing approximately 72 g.
- Reflective adjustable headband for improved visibility.
- Durable IP68 dust-tight and waterproof protection.
- 2-metre drop resistance.
- Operating temperature range from -20°C to +40°C.
Specifications
- Maximum Brightness: 600 lumens (Power/Boost modes)
- Beam Distance: Up to 140 meters
- Runtime: Up to 35 hours (on Low Power); around 2.5 hours on highest settings
- Light Sources: Two white LEDs for balanced close- and long-range illumination + dedicated red, green, and blue front lights
- Weight: Approximately 72g (very lightweight and comfortable for extended wear)
- Water/Dust Resistance: IP68 (suitable for continuous immersion/submersion)
- Drop Resistance: 2 meters
- Charging: Magnetic Charge System (USB-C compatible, quick and convenient; ~3 hours charge time)
- Battery: Integrated Li-ion 3.7V rechargeable
- Operating Temperature: -20°C to +40°C
What's in the Box
- 1 x LEDLENSER HF4R SIGNATURE HEADLAMP COPPER GIFT BOX
