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Fenix HL18R-T vs Petzl Nao RL

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

Fenix HL18R-T is the lighter option — 103 g lighter than the Petzl Nao RL (71% less weight). If grams matter to you, that is the one to beat.
Spec Fenix HL18R-T Petzl Nao RL
Weight 42 g · 0.042 kg · 0.09 lb 145 g · 0.145 kg · 0.32 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 Nao RL
145 g

High-output 1500-lumen rechargeable headlamp with Reactive Lighting that auto-adjusts brightness to the surroundings.

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Fenix HL18R-T vs Petzl Nao RL: which should you buy?

If saving weight is your priority, the Fenix HL18R-T wins — at 42 g it is 103 g (71%) lighter than the Petzl Nao RL (145 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