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Fenix HL18R-T vs Petzl Actik Core Headlamp

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

Fenix HL18R-T is the lighter option — 46 g lighter than the Petzl Actik Core Headlamp (52% less weight). If grams matter to you, that is the one to beat.
Spec Fenix HL18R-T Petzl Actik Core Headlamp
Weight 42 g · 0.042 kg · 0.09 lb 88 g · 0.088 kg · 0.19 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 Actik Core Headlamp
88 g

Rechargeable headlamp with 625 lumen max output and USB-C charging. Dual power: CORE battery or 3 AAA. 88g. Red night-vision mode included.

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Fenix HL18R-T vs Petzl Actik Core Headlamp: which should you buy?

If saving weight is your priority, the Fenix HL18R-T wins — at 42 g it is 46 g (52%) lighter than the Petzl Actik Core Headlamp (88 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.

More lighting comparisons