47 grams. That's lighter than your car keys. With 400 lumens to light the trail ahead.
The NU25 MCT UL delivers serious illumination from a package that weighs less than two AA batteries.
- 400 lumens reach 132 meters - enough for technical trail navigation
- Three color temperatures (3000K/4500K/6500K) match your task and conditions
- Built-in 700mAh battery runs 45 hours on ultralow, 2h 40min on high
- USB-C charging takes 1 hour 15 minutes from empty to full
- IP66 rating handles rain, dust, and real trail conditions
- Dual-button controls work reliably with winter gloves
- Red light mode preserves night vision for map reading
- Included diffuser sack converts to area lighting for camp tasks
Multiple color temperatures in a headlamp that barely registers on your scale
THREE COLOR TEMPERATURES, ONE BUTTON PRESS - The MCT (Multiple Color Temperature) system gives you warm 3000K light for reading and camp tasks, neutral 4500K for general trail use, and cool 6500K when you need maximum definition for route finding. Each temperature comes from dedicated LEDs, not filters that reduce output.
47 GRAMS WITH HEADBAND INCLUDED - For context, a standard 18650 battery alone weighs 45 grams. The entire NU25 MCT UL system - light, battery, bracket, and headband - weighs just 2 grams more. Ultralight hikers counting every gram will appreciate the weight-to-output ratio.
PRACTICAL BATTERY LIFE - The 700mAh built-in battery provides 45 hours on ultralow (6 lumens) - enough for multiple nights of camp use. On high (400 lumens), you get 2 hours 40 minutes of continuous output. USB-C charging from any power bank takes about 75 minutes.
CONTROLS THAT MAKE SENSE - Two distinct buttons: Power for on/off and brightness, MODE for color temperature switching. Hold both for 2 seconds to lock out accidental activation in your pack. The power indication system shows battery level at a glance - four lights mean 75-100%, one light means time to charge.
VERSATILE LIGHTING MODES - Beyond the main white light's four brightness levels, you get red light in two intensities plus flashing, SOS, and beacon modes. The included diffuser stuff sack spreads light evenly for tent illumination or area lighting at camp.
TESTED DURABILITY - IP66 rating means it handles sustained rain and dusty conditions. The 1-meter impact resistance covers the drops that happen when you're fumbling with gear in the dark. The PC plastic construction balances durability with weight savings.
KEY ADVANTAGES OF THE NU25 MCT UL
Dual-Core MCT LED System
Two separate LEDs provide three genuine color temperatures. You're getting actual 3000K, 4500K, and 6500K light sources, not a single LED with color filters that reduce output.
Weight-to-Performance Ratio
At 47 grams total weight, it delivers 400 lumens - that's 8.5 lumens per gram. Most ultralight headlamps sacrifice output for weight savings. This one delivers both.
No Battery Management
The built-in 700mAh rechargeable battery eliminates carrying spares. Charge from any USB source - power bank, solar panel, or car adapter. Full charge in 75 minutes.
Diffuser Stuff Sack Included
The lightweight sack serves double duty - protection during transport and instant conversion to lantern mode. Practical design that adds function without weight.
Engineered for gram-counters who need real performance
Sometimes the best gear is the gear you barely notice - until you need it
The NU25 MCT UL addresses a specific challenge: providing meaningful light output from minimal weight. The MCT system isn't marketing - it's three distinct color temperatures from separate LED cores, each optimized for different conditions.
400 lumens illuminates terrain 132 meters ahead. That's sufficient for running technical single track or navigating off-trail terrain. The 360° wide beam pattern from the unibody optical lens provides peripheral vision often missing in focused beam designs.
The dual-button interface eliminates menu diving. Power button cycles brightness, MODE button switches color temperature. Both buttons are distinct enough to operate by feel, even with thick gloves.
IP66 weatherproofing handles real conditions - we're talking sustained rain, not just splashes. The 1-meter drop rating covers typical accidents. The PC plastic housing balances impact resistance with weight efficiency.
For ultralight enthusiasts, every gram counts. For everyone else, 47 grams is light enough to forget it's there.
PRACTICAL APPLICATIONS
Camping
The diffuser sack creates even area lighting for cooking and camp tasks. Red mode preserves night vision during midnight nature calls.
Backpacking
Weight savings matter on multi-day trips. The built-in battery charges from the same power bank as your phone.
Alpine Starts
Cool 6500K temperature cuts through pre-dawn fog. Warm 3000K reduces eye strain during extended night navigation.
Trail Running
Light enough for racing, bright enough for technical terrain. The secure headband system stays put during movement.
PERFORMANCE DATA
| MODE | OUTPUT | RUNTIME | BEAM DISTANCE | INTENSITY |
| High | 400 lumens | 2h 40min | 132m | 4,353cd |
| Mid | 200 lumens | 5h | 94m | 2,195cd |
| Low | 40 lumens | 13h | 41m | 432cd |
| Ultralow | 6 lumens | 45h | 13m | 43cd |
| SOS | 200 lumens | - | - | - |
| Beacon | 400 lumens | - | - | - |
| Red High | 5 lumens | 26h | - | - |
| Red Low | 2 lumens | - | - | - |
| Red Flashing | 5 lumens | - | - | - |
Runtime tested at 25°C per ANSI/PLATO FL1 2016 Standard
Using built-in 700mAh Li-ion battery. Actual runtime may vary based on temperature and usage patterns.SPECIFICATIONS
| LED Type | Dual-core MCT (Multiple Color Temperature) UHE LEDs |
| Color Temperatures | 3000K Warm / 4500K Neutral / 6500K Cool White |
| Power Source | Built-in 700mAh Li-ion battery (non-replaceable) |
| Charging | USB-C port, approximately 1h 15min at 5V/0.5A |
| Special Functions | SOS, Beacon, Red Light (2 levels + flashing), Lockout Mode |
| Weather Resistance | IP66 (protected against dust and powerful water jets) |
| Impact Resistance | 1 meter to hard surfaces |
| Dimensions | 60.0mm x 33.0mm x 25.7mm (2.36" x 1.30" x 1.01") |
| Weight |
47g / 1.66oz with bracket and headband Weight without accessories not specified in documentation |
| Technical Manual (PDF) | |
Battery Status Indicators
| INDICATOR STATUS | BATTERY LEVEL |
| 4 lights constant | 75% – 100% |
| 3 lights constant | 50% – 75% |
| 2 lights constant | 25% – 50% |
| 1 light constant | Below 25% (recharge soon) |
Check battery status by pressing MODE button when light is off
Indicators display for 2 seconds, then automatically turn off to preserve battery.
Package Contents
- NU25 MCT UL Headlamp - Main unit with dual-core MCT LED system
- Bracket and Headband - Adjustable mounting system
- USB-C to USB-C Cable - For charging from USB-C sources
- Diffusing Stuff Sack - Converts headlamp to area light
Add the NU25 MCT UL to Your Kit
ORDER YOUR NU25 MCT ULYou’re Backed by Our 60-Day Ironclad Guarantee
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Try it for 60 days. If it’s not right for you, send it back.
We stand behind our gear. If you’re not happy with your purchase, just return the full package within 60 days and we’ll issue a full refund—no fuss, no forms, no hoops to jump through.
What Happens After You Order
- You’ll get an instant order confirmation email with your receipt.
- We’ll pack your order the next working day and send you a tracking number once it’s on the way.
- From the moment you order to the moment it reaches your hands, we’re here to keep you updated and supported.
When will I receive my gear?
- Singapore: Delivered to your doorstep in 4–6 working days.
- International: Arrive within 10–14 working days.
Returns and warranty
- Every product comes with a 1 to 3-year replacement warranty (depending on the item).
- If anything isn’t working right, just let us know. We’ll make it right.
FREE Gift with Purchase: Limited Edition Ember Shard Whistle
Spend $99 or more today, and we'll automatically include a limited-edition Glow-in-the-Dark Ember Shard Whistle when packing your order.
Charge it quickly under sunlight or your flashlight, and enjoy its subtle glow throughout the night—perfect for marking gear, emergency kits, or attaching to your bag.
Limited quantity available. Claim yours now!
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