Nitecore NU25 MCT UL Headlamp 400 Lumens - Rechargeable USB-C - 3 Color Temperatures - Ultra-Lightweight

The Nitecore NU25 MCT UL is an ultralight 1.65oz headlamp featuring MCT (Multiple Color Temperatures) technology to adapt to every weather and lighting condition. Its Dual-Core MCT UHE LEDs deliver 400 lumens for a 132m beam distance with 4351cd of intensity. Its 3 color temperatures (3000K warm / 4500K neutral / 6500K cool) plus auxiliary red light cover every situation. Its unibody multi-facet optics and included diffusing stuff sack make it the ideal versatile headlamp for trail running, hiking, camping and nighttime adventures.

MCT Technology and Maximum Versatility

The MCT system lets you instantly switch between warm 3000K light (cuts through fog and rain, easier on the eyes), neutral white 4500K (natural light for everyday tasks) and cool white 6500K (maximum outdoor visibility). 4 brightness levels (400lm/200lm/60lm/6lm) apply across all 3 color temperatures for total precision. The auxiliary red light (5-15 lumens + slow flash) preserves night vision. Its built-in 700mAh Li-ion battery delivers up to 45h of runtime in ULTRALOW, rechargeable in ~1h via USB-C. The integrated thermal protection automatically regulates output to maintain optimal performance. The lockout mode prevents accidental activation.

Ultra-Lightweight and Durable Construction

Beyond its lighting performance, the NU25 MCT UL stands out for its exceptional lightness: at only 1.65oz / 47g with its easily adjustable elastic cords, it is perfect for trail running and backpacking. Its durable PC body with unibody multi-facet optics ensures robustness and uniform diffusion. The 2 buttons, different in shape and touch, enable intuitive one-handed operation. Its 4 new-generation power indicators display remaining battery at a glance. The included diffusing stuff sack transforms the NU25 MCT UL into an ambient lantern for camping.

Operating Instructions

Primary MCT Light: Press the main button to cycle brightness levels. Long-press to switch color temperature (3000K→4500K→6500K).

Red Light: Secondary button to activate red light (15lm, 5lm or slow flash).

Special Modes: Double-press for SOS or Beacon (400lm, neutral white).

Lockout Mode: Activate/deactivate lockout to prevent accidental activation.

Charging: Connect the included USB-C to USB-C cable. Full charge in ~1h.

Diffusing Sack: Insert the head into the sack for soft ambient lighting.

Specifications

• LED: Dual-Core MCT UHE (3 color temperatures)
• Maximum brightness: 400lm
• Peak beam intensity: 4351cd
• Maximum range: 433ft / 132m
• Optics: Unibody multi-facet lens
• Color temperatures: 3000K Warm / 4500K Neutral White / 6500K Cool White
• Primary Light (3 color temperatures):
• HIGH: 400lm (2h40min) 433ft / 132m 4351cd
• MID: 200lm (5h) 308ft / 94m 2192cd
• LOW: 60lm (13h) 167ft / 51m 662cd
• ULTRALOW: 6lm (45h) 43ft / 13m 43cd
• SOS: 400lm / Beacon: 400lm (neutral white)
• Auxiliary Red Light:
• HIGH: 15lm (10h) 23ft / 7m 13cd
• LOW: 5lm (26h) 13ft / 4m 5cd
• Slow Flashing: 15lm
• Power source: Built-in 700mAh Li-ion battery (non-removable)
• Maximum runtime: 45h (ULTRALOW)
• Charging: USB-C to USB-C (~1h full charge)
• Thermal protection: Built-in (automatic output regulation)
• Lockout mode: Yes (prevents accidental activation)
• Power indicators: 4 LED
• Buttons: 2 different in shape and touch (one-handed)
• Materials: Durable PC
  
• Dimensions: 2.36" / 60.0mm (L) x 1.30" / 33.0mm (W) x 1.01" / 25.7mm (H)
• Weight: 1.65oz / 47g
• Impact resistance: 3.28ft / 1m
• Waterproof rating: IP66 (non-submersible)

Box Contents

• 1 NU25 MCT UL Headlamp
• 1 Adjustable Elastic Headband
• 1 USB-C to USB-C Cable
• 1 Diffusing Stuff Sack