The Nebo Einstein Duo 400 Headlamp is a compact, lightweight hands-free lighting solution designed for work, outdoor adventures and everyday tasks
Producing up to 400 lumens, the Nebo Einstein Duo 400 combines a powerful spotlight, wide floodlight and dedicated red light modes in a comfortable, adjustable design. Featuring Nebo’s Flex-Power technology, it can operate using the included AAA batteries or an optional rechargeable lithium-ion battery, providing the flexibility to suit a variety of applications.
With seven versatile lighting modes, the Einstein Duo 400 delivers focused distance illumination and broad close-range lighting to match the task at hand. The spotlight produces up to 400 lumens with a beam distance of 133 metres, while the floodlight provides comfortable wide-angle illumination for working at close range. Dedicated red High, Low and Red Strobe modes help preserve night vision and improve visibility when signalling or working in low-light conditions.
Designed for convenience, the Einstein Duo 400 features dimming with Power Memory Setting, allowing the headlamp to remember the last selected brightness level for quicker operation. The Direct-to-Red function provides instant access to the red light modes, while the integrated 180° adjustable tilt enables precise beam positioning. A single top-mounted button offers simple, intuitive control of all lighting functions.
Built for dependable everyday performance, the Einstein Duo 400 features a compact, comfortable design with an adjustable head strap for secure all-day wear. Its IP44-rated construction provides protection against dust and water splashes, making it suitable for both indoor and outdoor use. Whether used for camping, hiking, maintenance, DIY projects or emergency preparedness, the Nebo Einstein Duo 400 delivers versatile hands-free illumination whenever it’s needed.
Features
- Compact and lightweight hands-free headlamp.
- Maximum output of 400 lumens with a beam distance of up to 133 metres.
- Seven lighting modes including Spot, Flood and Red lighting options.
- Spotlight and floodlight for versatile illumination.
- Red High, Red Low and Red Strobe modes preserve night vision and improve visibility.
- Flex-Power technology supports AAA batteries or an optional rechargeable lithium-ion battery.
- Dimming with Power Memory Setting remembers the last brightness level.
- Direct-to-Red function for instant access to red light modes.
- 180° adjustable tilt for precise beam positioning.
- Simple top-mounted ON/OFF button operation.
- Comfortable adjustable head strap.
- IP44 water and dust-resistant construction.
- Powered by three AAA batteries (included).
- Ideal for camping, hiking, DIY, maintenance, workshops and everyday hands-free lighting.
Specifications
- Spot Light High (400 lumens): 3 hours / 133 meters
- Spot Light Low (80 lumens): 8 hours / 57 meters
- Flood Light High (80 lumens): 9 hours / 16 meters
- Flood Light Low (10 lumens): 34 hours / 16 meters
- Red High (3.5 lumens): 10.5 hours / 4 meters
- Red Low (1 lumen): 40 hours / 1 meter
- Red Strobe: (2.5 lumen): 42 hours / 4 meters
- Powered by 3 x AAA batteries
- Weight: 73 grams
- (L) 60mm X (W) 44mm X (H) 46mm





















