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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.

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The short answer

BioLite Range 500 comes out ahead by a narrow margin (4.5 vs 4.3). BioLite Range 500 is best for: backpackers needing fast charging. Read the strengths below before deciding.

BioLite Range 500
Higher ratedRanked #1 in Best Rechargeable Headlamps
BioLite Range 500
2 sources$70as of Oct 11

The BioLite Range 500 is a light, fast-charging headlamp putting out 500 lumens. Runtime reaches up to 200 hours on low and it recharges quickly. A 1Lumen reviewer measured 445 lumens output and 84 meters of beam distance. At $70 it comes recommended for backpackers and outdoor enthusiasts who want reliable, comfortable lighting.

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
  • — Unit can slip when little tension is applied to the band
$70 · Buy at bioliteenergy.comFull review →
Nitecore NU25 400 UL
Ranked #4 in Best Rechargeable Headlamps
Nitecore NU25 400 UL
1 source$36.95as of Oct 11

Reviewers describe the Nitecore NU25 UL as a functional, lightweight headlamp that's a good match for backpacking and outdoor activities. They point to the waterproof build, the essential feature set, and a surprisingly low price. The 400-lumen output struck some as modest, but the consensus is that it performs solidly for ultralight users. Hikers and campers who want reliable, budget-friendly headlamp functionality are the fit.

Strengths
  • — Bright and lightweight design ideal for backpacking, per CleverHiker
  • — Loaded with essential features including waterproofing, per CleverHiker
  • — Rechargeable battery with good functionality
Watch-outs
  • — Red light has no dedicated control — you cycle to it through the mode button
$36.95 · Check Price on AmazonFull review →

How they stack up

BioLite Range 500

The BioLite Range 500 reaches an 80% charge in 30 minutes, where the Knog Bandicoot 250 takes 4 hours to charge fully. It puts out 500 lumens against the Knog's 250 and costs more than the Knog. The Fenix HM50R v2 is brighter at 700 lumens and is rated IP68 against the BioLite's IP67.

Nitecore NU25 400 UL

Against the Silva Trail Runner Free H it is cheaper and lighter, but it gives up the Silva's hybrid battery system and its simpler brightness switching. Among ultralight rechargeable lamps its strength is feature count per gram rather than raw output.

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
MaterialAbs, PolycarbonatePlastic
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