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Fenix HL18R-T vs Petzl Swift LT Headlamp

Weight and specs compared for 2026 — and which one to choose.

Fenix HL18R-T is the lighter option — 1 g lighter than the Petzl Swift LT Headlamp (2% less weight). If grams matter to you, that is the one to beat.
Spec Fenix HL18R-T Petzl Swift LT Headlamp
Weight 42 g · 0.042 kg · 0.09 lb 43 g · 0.043 kg · 0.09 lb
Brand Fenix Petzl
Category Lighting Lighting
Fenix HL18R-T
42 g

Ultralight 500-lumen rechargeable headlamp for trail running.

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Petzl Swift LT Headlamp
43 g

Ultra-compact 900-lumen rechargeable headlamp. Lightest Petzl rechargeable model with Bluetooth app connectivity for programmable modes.

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Fenix HL18R-T vs Petzl Swift LT Headlamp: which should you buy?

If saving weight is your priority, the Fenix HL18R-T wins — at 42 g it is 1 g (2%) lighter than the Petzl Swift LT Headlamp (43 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.

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