Nitecore NU25 MCT UL 400 Lumen Ultralight USB-C Headlamp - Compact

In this review the Nitecore NU25 MCT UL stands out as a purpose-built ultralight headlamp for outdoor users who prioritize weight and flexible lighting. At just 1.65 oz and capable of producing up to 400 lumens, it is designed for backpacking, trail running, and any activity where every ounce matters. The single biggest reason to buy is its blend of serious output and multiple color temperatures in a package that recharges quickly via USB-C, making it convenient for multi-day trips or regular outdoor use.

Key Features

• Brightness: Delivers up to 400 lumens and a long beam reach that keeps trails and campsites well illuminated without a heavy unit.
• Ultralight design: Weighs only 1.65 oz, which reduces head load during long hikes, running sessions, or when layered under a helmet.
• Multi color temperature: Switches between warm, natural, and cool white for eye comfort, task clarity, or enhanced contrast depending on conditions.
• Versatile outputs: Includes multiple brightness levels, SOS and beacon modes, plus a red auxiliary light with three outputs for night vision and signaling.
• USB-C rechargeable: Built-in USB-C port and battery status indicator provide fast recharge in about an hour and long runtimes up to 45 hours on lower outputs.
• Durable construction: PC material housing with IP66 water resistance and one meter impact resistance keeps it functional in rain and rough use.

Who It's For

The NU25 MCT UL is ideal for backpackers, trail runners, and minimalist campers who need a bright but featherweight light that will not add bulk to their kit. The fast USB-C recharge and battery indicator suit multi-day outings or regular evening use where reliability and quick top-ups matter.

It is less appropriate for users who need extreme waterproofing for submersion, long-term industrial work lights that require heavy-duty housings, or those who want integrated rechargeable battery packs with very high continuous output for extended technical tasks.

Pros & Cons

Pros

• Very light at 1.65 oz, making it comfortable for long wear.
• Multiple color temperatures let users tailor light to conditions, from foggy nights to close tasks.
• USB-C recharge and battery indicator simplify power management on trips.
• Includes practical modes like SOS, beacon, and a red auxiliary light for low-light work and signaling.

Cons

• While IP66 splashproof, it is not rated for prolonged submersion, so extreme water exposure should be avoided.
• High 400 lumen output will shorten runtime, so users must manage power for long multi-day use.

Specifications

Brand	Nitecore
Model	NU25 MCT UL
Maximum output	400 lumens
Weight	1.65 oz
Recharge	Built-in USB-C port, ~1+ hour
Water resistance	IP66
Included	Headlamp, USB-C to USB-C cable, bracket, headband, diffusing stuff sack, sticker

Our Verdict

The Nitecore NU25 MCT UL is a strong choice for lightweight outdoor enthusiasts who want a flexible, rechargeable headlamp with real output. Its combination of 400 lumens, multiple color temperatures, and ultralight construction makes it excellent value for backpacking, running, and general camping use where weight and rechargeability matter most.

Frequently Asked Questions

How long does the battery last?
Runtime varies by output; lower settings can run up to about 45 hours while the highest output reduces runtime significantly.

Can it be recharged in the field?
Yes, it uses a built-in USB-C port and includes a USB-C to USB-C cable for fast recharging from power banks.

Is the light waterproof?
It is rated IP66 for strong splash and rain resistance but is not intended for prolonged submersion.