Verdict
Head-to-head · Best Rechargeable Headlamps

BioLite Range 500 vs Nitecore NU25 400 UL

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

BioLite Range 500 comes out ahead by a narrow margin (4.5 vs 4.3). The gap is mostly about backpackers needing fast charging — read the strengths below before deciding.

BioLite Range 500
Higher ratedRanked #2 in Best Rechargeable Headlamps
BioLite Range 500
$59.95as of Jun 7

The BioLite Range 500 is a lightweight, fast-charging headlamp that delivers 500 lumens of illumination. TreeLineBackpacker reviewer found it comfortable and easy to adjust, with a seamless uni-body design that eliminates pressure points. The unit offers up to 200 hours runtime on low and charges quickly, though it lacks a weather cover for the USB-C port. 1Lumen reviewer noted its 445 lumens output and 84-meter beam distance. This headlamp is recommended for backpackers and outdoor enthusiasts seeking a reliable, comfortable lighting solution at $70.

Strengths
  • Lightweight design at 2.6 oz (75 grams)
  • Fast charging capability, 80% charge in 30 minutes
  • Comfortable uni-body lamp/strap design with soft padded band
Watch-outs
  • Missing weather cover on USB-C port
  • Unit can slip when little tension is applied to the band
Nitecore NU25 400 UL
Ranked #7 in Best Rechargeable Headlamps
Nitecore NU25 400 UL
$37as of May 28

The Nitecore NU25 UL is praised as a functional, lightweight headlamp perfect for backpacking and outdoor activities. Reviewers noted its waterproof build, essential feature set, and surprisingly low price point. While some found the 400-lumen output modest, the overall consensus is that it delivers solid performance for ultralight enthusiasts. It's best suited for hikers and campers seeking reliable, budget-friendly headlamp functionality.

Strengths
  • Bright and lightweight design ideal for backpacking
  • Loaded with essential features including waterproofing
  • Surprisingly affordable for its quality and features
Watch-outs
  • Limited brightness at maximum setting (400 lumens)
  • No dedicated red light mode for night vision preservation

How they stack up

BioLite Range 500

The BioLite Range 500 offers faster charging than the Knog Bandicoot 250, which charges in 30 minutes versus 2.1 oz's 2.5 hours, and provides more consistent runtime at 200 hours on low. However, it's not as bright as the Fenix HM50R v2, which delivers 700 lumens, and lacks the IP68 waterproofing of the Fenix.

Nitecore NU25 400 UL

The Nitecore NU25 400 UL is more affordable than the Silva Trail Runner Free H, which offers better brightness at 400 lumens versus 400, and provides a more budget-friendly option for ultralight enthusiasts. However, it lacks the hybrid battery system of the Silva and doesn't feature the triple brightness settings of the Silva.

Specs side-by-side

SpecBioLite Range 500Nitecore NU25 400 UL
Weight75 g55 g
Lumens500 lumens400 lumens
Beam Distance100m64 meters
Waterproof RatingIP67IP66
Battery1634 mAh lithium-ionRechargeable
ChargingUSB-CUSB-C
Modes5 modes (White Spot, White Strobe, Red Flood, Red Strobe, White Flood)Spot, flood, and red light modes
LED TypeWhite and Red LEDs5500K dual LED + Red LED
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