Nitecore UT27 MCT vs Petzl Swift RL Headlamp
Weight and specs compared for 2026 — and which one to choose.
Ultralight trail running headlamp with 800 lumens output and three color temperature options. USB-C rechargeable with 1500mAh battery pack.
Full details →Rechargeable 1200-lumen headlamp with reactive lighting technology that automatically adjusts brightness based on ambient conditions. USB-C charging.
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Nitecore UT27 MCT vs Petzl Swift RL Headlamp: which should you buy?
If saving weight is your priority, the Nitecore UT27 MCT wins — at 74 g it is 18 g (20%) lighter than the Petzl Swift RL Headlamp (92 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.
See where both rank against everything else in this category on the lightest lighting page, or browse the full gear weight database.