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Nitecore NU21 vs Nitecore NU25 MCT UL Headlamp
Weight and specs compared for 2026 — and which one to choose.
Nitecore NU21 is the lighter option — 3 g lighter than the Nitecore NU25 MCT UL Headlamp (6% less weight). If grams matter to you, that is the one to beat.
Nitecore NU21
44 g
Ultralight USB-C rechargeable headlamp with 360-lumen white and auxiliary red beams, built for running and minimalist hiking.
Check price Full details →Nitecore NU25 MCT UL Headlamp
47 g
400-lumen USB-C rechargeable headlamp with three color temperatures and ultralight 47g construction for minimalist backpacking.
Check price Full details →Nitecore NU21 vs Nitecore NU25 MCT UL Headlamp: which should you buy?
If saving weight is your priority, the Nitecore NU21 wins — at 44 g it is 3 g (6%) lighter than the Nitecore NU25 MCT UL Headlamp (47 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.