BioLite HeadLamp 400 vs Petzl Swift LT
Weight and specs compared for 2026 — and which one to choose.
Rechargeable headlamp at 2.6 oz / 75g with 400 lumens maximum output and a moisture-wicking fabric strap. Front-facing tilt, USB-C charging, and weather resista...
Full details →Ultra-compact USB-C rechargeable headlamp with 380 lumens and red night-vision mode. Made with 50% recycled materials. IPX4 rain resistant.
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BioLite HeadLamp 400 vs Petzl Swift LT: which should you buy?
If saving weight is your priority, the Petzl Swift LT wins — at 43 g it is 32 g (43%) lighter than the BioLite HeadLamp 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.