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Fenix HL18R-T vs Petzl Swift RL
Weight and specs compared for 2026 — and which one to choose.
Fenix HL18R-T is the lighter option — 58 g lighter than the Petzl Swift RL (58% less weight). If grams matter to you, that is the one to beat.
Petzl Swift RL
100 g
Reactive lighting 900-lumen headlamp. Auto-adjusts to conditions.
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Fenix HL18R-T vs Petzl Swift RL: which should you buy?
If saving weight is your priority, the Fenix HL18R-T wins — at 42 g it is 58 g (58%) lighter than the Petzl Swift RL (100 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.