Head to head
Nitecore NU25 UL vs Petzl Swift RL (2027)
Head-to-head: Nitecore NU25 UL versus Petzl Swift RL, ultralight simplicity against sensor-driven premium performance.
Nitecore NU25 UL
The thru-hiker's lamp: 400 lumens at 45 grams with a cord band.
- Max output: 400 lumens
- Beam distance (max): 64 m
Petzl Swift RL
1,100 lumens with Reactive Lighting that thinks for you.
- Max output: 1,100 lumens
- Beam distance (max): 155 m
Our recommendation
Choose the NU25 UL for backpacking and weight above all; it does the essentials at 45 g. Choose the Swift RL for running speed and automatic brightness; its sensor and 1,100 lumens are in another performance class, at another price.
Output and intelligence
The Swift RL throws 1,100 lumens 155 m and manages itself with a light sensor. The NU25 UL offers 400 honest lumens and manual modes. For running technical descents the Petzl's throw is a safety feature; for hiking, the Nitecore's output suffices.
Weight
45 g versus 100 g: the NU25 UL is less than half the Swift's weight, the largest proportional gap in this guide. Backpackers feel this; runners focused on fit may not care.
Price and purpose
The NU25 UL costs a fraction of the Swift RL because it is a simpler tool. Paying for the Swift buys automation and output you either need for speed or do not need at all.
Choose Nitecore NU25 UL if…
- You thru-hike or fastpack and count every gram
- Your night movement is hiking pace
- Budget matters and essentials suffice
Choose Petzl Swift RL if…
- You run technical trails at night
- You want brightness managed automatically
- You need 150 m-class throw for route finding
Questions, answered
Which lasts longer per charge?
At camp-level brightness both last evenings. At running brightness the Swift's bigger battery and sensor management outlast the NU25's small cell decisively.
Which is better in rain?
The NU25 UL's IP66 actually exceeds the Swift's IPX4 for water resistance, a spec upset worth knowing.
Which should a new night hiker buy?
The NU25 UL. It covers hiking and camp completely at minimal cost and weight; upgrade only if running speed enters your life.