Nitecore NU21 vs Petzl Swift RL Headlamp 1200L
Weight and specs compared for 2026 — and which one to choose.
Ultralight USB-C rechargeable headlamp with 360-lumen white and auxiliary red beams, built for running and minimalist hiking.
Full details →High-performance headlamp, 3.25oz, 1200 lumens with reactive lighting technology
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Nitecore NU21 vs Petzl Swift RL Headlamp 1200L: which should you buy?
If saving weight is your priority, the Nitecore NU21 wins — at 44 g it is 48 g (52%) lighter than the Petzl Swift RL Headlamp 1200L (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.