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BioLite Range 400 vs Petzl Swift LT Headlamp
Weight and specs compared for 2026 — and which one to choose.
Petzl Swift LT Headlamp is the lighter option — 32 g lighter than the BioLite Range 400 (43% less weight). If grams matter to you, that is the one to beat.
BioLite Range 400
75 g
USB-C rechargeable headlamp with 400 lumens, IP67 rating and fast charging that adds an hour of run time in eight minutes.
Check price Full details →Petzl Swift LT Headlamp
43 g
Ultra-compact 900-lumen rechargeable headlamp. Lightest Petzl rechargeable model with Bluetooth app connectivity for programmable modes.
Check price Full details →BioLite Range 400 vs Petzl Swift LT Headlamp: which should you buy?
If saving weight is your priority, the Petzl Swift LT Headlamp wins — at 43 g it is 32 g (43%) lighter than the BioLite Range 400 (75 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.