BioLite Energy Range 400 Headlamp vs Flextail Tiny Helio 600Z Headlamp
Weight and specs compared for 2026 — and which one to choose.
400 lumens, 1634 mAh Li-ion battery, USB-C charging, IP67 rated. Best headlamp of 2025 for backpacking functionality.
Full details →Lightweight 600 lumen headlamp with battery included. Full weight 59.5g.
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BioLite Energy Range 400 Headlamp vs Flextail Tiny Helio 600Z Headlamp: which should you buy?
If saving weight is your priority, the Flextail Tiny Helio 600Z Headlamp wins — at 60 g it is 15 g (20%) lighter than the BioLite Energy Range 400 Headlamp (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.