10000 
90 H
400 M
Brilliant performance under extreme conditions: The H21R is designed for extreme sports on land and water, as well as demanding work environments underground and at night. The powerful headlamp provides reliable illumination—and reveals obstacles when riding downhill on a mountain bike in the dark, guides your way on the boat in poor visibility or effortlessly illuminates vast tunnels and railway tracks. In spot mode, it can be used as a powerful signal on the water or in the air, while its homogeneous flood light allows you to discover the smallest details up close, such as a barnacle on the anchor of your boat or a minor technical malfunction affecting the engine of a train. To make sure you always have the best possible light, you can rely on the innovative Adaptive Light Beam for automatic dimming and focusing and thus hands-free use of your H21R. If you prefer manual control, the enhanced Digital Advanced Focus System is the way to go. By turning the digital focus ring, you can digitally switch from flood to spot to suit any range or task. You can also choose between red light to help you preserve your night vision, green light for wildlife observation and blue light to make liquids visible—while the optional red rear light and reflective headband offer additional visibility. The powerful battery also operates while charging, so you never run out of light on your adventures or a long shift—and is located at the back of your head for a balanced weight distribution. You can also easily mount the H21R on your helmet via the included mounting accessories and use the Ledlenser Connect App for remote control and personalization. When not in use, you can safely store and transport your headlamp in the exclusive hard-shell case. And: Our lights are made for a brighter future—therefore, your H21R contains recycled materials.
- Ultimate performance with up to 9000 lm (boost), red, green and blue front light as well as optional red rear light
- Automatic (Adaptive Light Beam) and manual dimming and focusing (Digital Advanced Focus Function)
- Extremely powerful battery: Charges via USB-C and operates while charging
- Remote control and personalization via Ledlenser Connect App
- Exclusive hard-shell case for safe transport and storage
Charging cable (USB-C)
Extension cable
Case Type B
| Boost | Power | Mid | Low | |
|---|---|---|---|---|
| Lumens lm | 10000 | 3500 | 900 | 40 |
| Beam distance m | 400 | 380 | 180 | 40 |
| Run time h | - | 3 | 8 | 90 |
Technical Data
- Weight incl. batteries [g]530
- MaterialAluminum alloy, PC
- Luminous range [m]-
- Luminous range focused [m]-
- Tube diameter [mm]-
- Head diameter [mm]-
Power Supply
- Battery quantity1
- RechargeableYes
- Battery typeLithium-ion
- Total battery voltage [V]14.54
- Total battery capacity [mAh]3500
- Total battery energy [Wh]50.89 Wh
- Charging time [min]210
Further Specifications
- IP classIP67
- Drop test [m]1.5
- Working temperature [°C]-20 to +40
Light Functions
Cool White Main: Boost, Power, Mid power, Low power
Light Source
- Amount LEDs6
- ColorCool White
- Color temperature [K]6000 to 7500
- CRI70
Light Values
| Boost | Power | Mid power | Low power | |
|---|---|---|---|---|
| Luminous flux (lm) | 10000 | 3500 | 900 | 40 |
| Beam range (m) | 400 | 380 | 180 | 40 |
| Duration (h) | - | 3 | 8 | 90 |
Switch
Side Multifunctional switch, Top Switch
Features
Backup Mode, Flicker Free, Blue Light, Red Light, Green Light, Bluetooth®, Stepless Dimming, Transportation Lock, Memory Function, Rear Light, Adaptive Light Beam, Digital Advanced Focus System, USB-C Charging, Multi-Lens Technology, Temperature Control System
LED
- LED Configuration 6 x Cool White Main LED
- Luminosity1 MAX 10000 lm - MIN 40 lm
- Lighting Range1 MAX 400 m - MIN 40 m
- Battery Duration1 MAX 90 h - MIN 3 h
- CRI 70
- Color Temperature 6000 to 7500
6000K
Light Functions
- Boost - short-duration maximum power for more brightness
- Power - high light output for every situation
- Mid Power - medium light output for every situation
- Low Power - economical light for long battery life, glare-free reading and working
Rechargeable
Did you know that conventional, disposable batteries can require up to 500 times more electricity to produce than they can release? By opting for rechargeable batteries, not only are you saving money in the long-run by reusing the same batteries, but you’re no longer throwing disposables away, which is a plus for Mother Earth.
IP-Class
- IP67 - Protection for submersion in water up to 1m deep for up to 30 mins.
Height and Weight
- Weight 530 g
Battery and Casing
- Battery 1 x Li-ion 14.54V
- Battery Capacity2 3500 mAh
- Water Resistance IP67
- Rechargeable Yes
Energy Management
- Battery Indicator - it shows the current level of the battery
- Charge Indicator - it shows the current charge status of the battery
- Low Battery Warning - it warns you when the battery is low
- Backup Mode - monitors charge level and activates low-power emergency safety light