Ultralight Headlamps

How To Choose an ultralight headlamp for backpacking

An ultralight headlamp for backpacking is essential for safety, weight savings, and utility at camp. But what makes any particular model better than any other, an ultralight headlamp, or perhaps even the best headlamp? While virtually any headlamp is passable, we believe you should choose from among those that meet the following criteria.

Ultralight Headlamp Criteria

  1. Weighs ~2 oz or less
  2. USB-C Rechargeable battery
  3. At least 300 lumens mandatory), 400+ preferred

One more important note is that, based on our statistical comparisons and meta analysis of aggregate expert and consumer reviews, the Black Diamond headlamps are beating out competing models form Petzl. And of course, that’s reflected in the assortment. Keep scrolling to view the headlamps, and while you’re here, browse more accessories, like power banks, satellite communicator devices, and backpacking trowels!

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Best Ultralight Headlamps (~2 oz or less)

Best Battery For Recharge

Nitecore NU27 ultralight headlamp

Nitecore NU 27 is our current favorite headlamp

Best Headlamp For Backpacking Comparison Table

*Mobile users rotate device for full-width table view

Headlamp Price ($) Weight (oz) Battery (mAh) mAh/oz Lumens Protect Plug Hrs on High Hrs on low
A5 Hat Clip 37 0.8 330 412 650 IPX6 USB-C 1.5 8
BD Deploy 325 60 1.4 750 535 325 IPX4 USB-C 2.5 30
Petzl Swift LT 55 1.5 880 586 380 IPX4 USB-C 2.0 60
Nitecore NU25 37 1.6 650 406 400 IP66 USB-C 2.7 10
Coast FL1R Micro 35 1.7 630 370 435 IP54 USB-C 1.3 4.8
Biolite Range 300 40 1.8 817 453 300 IP67 USB-C 4.0 100
Nitecore NU27 41 2.0 850 425 600 IP66 USB-C 3.0 57
Flextail Tiny Helio 47 2.1 900 429 600 IP67 USB-C 4.0 50

3 Ultralight Headlamps stacked on one another

Best Ultralight Headlamps

Nitecore NU27 Headlamp

Nitecore NU27 600

Nitecore NU27 is the new best-in-class headlamp, due to an unmatched combination of high lumen output, warm lighting options, long lasting battery life, low weight, good ingress protection, good headband, and a USB-C charging port. It is a notable upgrade over its predecessor the NU25, which is a bit lighter but has a smaller battery and isn’t as bright. NU27’s unique warm white light setting is more pleasant to use and be around at camp, which sets it a cut above the rest.

  • Price: $45
  • Weight: 2.0 oz
  • Max Lumens: 600
  • Battery: 850 mAh
  • mAh/oz: 425
  • Dust/Water Protection: IP66
  • Plug: USB-C
  • Avg battery life on high: 3.0 hours
  • Avg battery life on low: 57
  • Light Modes: Spotlight, Floodlight, Warm White, Neutral White, Cool White, Red Light
  • Pros: Ultralight. Very bright/wide light. Affordable. USB-C. All of the features. Good ingress protection. Headband is comfy, light, breathable.
  • Cons: Marginally lighter options exist. Learning curve for all of the modes/settings.
Nitecore NU25 400L ultralight headlamp for backpacking

Nitecore NU25 UL 400

For its incredible blend of ultralight weight, backcountry performance, value, brightness, and ingress protection, Nitecore NU25 UL 400 earns our runner up award, bested only by its newer more powerful sibling the NU27 (though NU is .4 ounces lighter weight). The weight savings are partially derived from the shock cord headband, which has great reflectivity, but isn’t particularly comfortable.

  • Price: $37
  • Weight: 1.6 oz
  • Max Lumens: 400
  • Battery: 650 mAh
  • mAh/oz: 406
  • Dust/Water Protection: IP66
  • Plug: USB-C
  • Avg battery life on high: 2.7 hours
  • Avg battery life on low: 10.4
  • Light Modes: Spotlight, Floodlight, Red Light
  • Pros: Ultralight. Bright. Affordable. USB-C. All of the features. Good ingress protection.
  • Cons: Mid-tier battery. UL headband is better for static use than hiking.
Biolite Range 300

Biolite Range 300

The new Biolight Range 300 is one of only a select few headlamps in the sub-2-oz weight class. And unlike many of those, it has an actually comfy headband strap and IP67 submersible rating. This design is notable for fast charging: 8 min of charge adds 1 hour of run time; 70 minutes of charge takes it to 100%. Perhaps the biggest drawback is that you have to choose to between brightness or lightness. The 300 lumen version discussed here is adequately bright but unexciting, and lacks a red light mode. The Biolite Range 400 and  Range 500 models add brightness and red mode, but for an ounce of extra weight, taking them out of ultralight consideration.

  • Price: $40
  • Weight: 1.8 oz
  • Max Lumens: 300
  • Battery: 817 mAh
  • mAh/oz: 453
  • Dust/Water Protection: IP67
  • Plug: USB-C
  • Avg battery life on high: 4 hours
  • Avg battery life on low: 10 hours
  • Light Modes: Dimmable White Spotlight & Strobe
  • Pros: Ultralight. Comfy to wear. Ultra fast USB-C charging. Better than average water/dust protection.
  • Cons: Lower than average lumen output on max. No red light mode.

Petzl Swift LT

For just 1.5 oz, the Petzl Swift LT has a respectable battery (880 mAh), a respectable brightness (380 lumens max), and a respectable water resistance (IPX4). It even has three brightness levels, red or white light, and up/down tilt! The head strap is comfier and more secure than it looks, albeit not as comfy as a true flat bands. This is a pretty good ultralight headlamp, but we ding it for lower-than-average lumens, unimpressive IPX rating, and a short battery life on high output, despite having a better than average battery.

  • Price: $55
  • Weight: 1.5 oz
  • Max Lumens: 300
  • Battery: 880 mAh
  • mAh/oz: 586
  • Dust/Water Protection: IPX4
  • Plug: USB-C
  • Avg battery life on high: 2.0 hrs
  • Avg battery life on low: 60 hrs
  • Pros: Lighter than most other ultralight headlamps. Secure headband. Good mAh.
  • Cons: Headband straps are less comfy than flat band. Short battery life on high output. Middling lumen output and ingress protection. Slightly overpriced.

Flextail Helio 600z Headlamp

Flextail Tiny Helio 600Z

Wow, we’re genuinely impressed by the specs on Flextail Tiny Helio 600Z. It has a lighter than average weight, lower than average price, above average brightness, better than average dust/water protection, and an above average battery for its weightclass (900 mAh version). It’s not quite as lightweight as the Nitecore NU25 UL, nor is its battery as exceptional as the Black Diamond Spot. But all said and done, it offers one of the best overall blends of performance relative to its value.

It comes with both flood and spot lights which are controlled by two separate buttons, which can also be combined, dimmed, or turned red. Other notables include the reflective shock cord straps, which are lighter and more visible than a traditional headband, but also less comfy and more prone to tangling. Another small downside is that the replaceable, rechargeable battery is more bulbous in shape coming off the head compared to models with a sleeker, flatter integrated battery.

  • Price: $39
  • Weight: 2.1 oz
  • Max Lumens: 600
  • Battery: 900 mAh
  • mAh/oz: 428
  • Dust/Water Protection: IP67
  • Plug: USB-C
  • Avg battery life on high: 4.0 hrs
  • Avg battery life on low: 50 hrs
  • Pros: Bright and with great battery. Excellent water/dust protection. Low price. Very lightweight. Reflective headband cords. Good vertical adjustability.
  • Cons: Bulbous shape. Headband cords are less comfy than traditional straps, more likely to tangle. Not quite ultralight.

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Black Diamond Deploy 325 ultralight headlamp for running

Black Diamond Deploy 325 Run Light

The Black Diamond Deploy 325 is our favorite ultralight headlamp for trail running, and weighs about 12.5% less than our top pick from Nitecore. It also has a similar battery, and full elastic headband (as opposed to two elastic cords). However despite the high efficiency on low power mode, its max output is dim (325 barely qualified for our guide), and it drains power inefficiently when used on bright setting. What more, the sport headband does not allow for extra downward tilt to avoid blasting your fellow campers with light when sitting around cooking dinner.

  • Price: $60
  • Weight: 1.4 oz
  • Max Lumens: 325
  • Battery: 750 mAh
  • mAh/oz: 486
  • Dust/Water Protection: IPX4
  • Plug: USB-C
  • Avg battery life on high: 2.5 hrs
  • Avg battery life on low: 30 hours
  • Pros: Ultralight. USB-C. Sporty fit. Long lasting battery on low output.
  • Cons: Dim. Expensive. Inefficient when used on high. Cannot be adjusted to point farther downward. Slightly overpriced.


Coast FL1R

Coast FL1R Micro Headlamp

The Coast FL1R Micro is an ultralight headlamp that offers all of the key features we’d expect for a very reasonable price. That includes, high lumen output, tilt, white and red lighting, water and dust protection, USB-C and a full headband strap. Where it falls short is battery. Of every headlamp in this guide, it has the smallest battery with the shortest lifespan on both high and low mode.

  • Price: $35
  • Weight: 1.7 oz
  • Max Lumens: 435
  • Battery: 630 mAh
  • mAh/oz: 370
  • Dust/Water Protection: IP54
  • Plug: USB-C
  • Avg battery life on high: 1.25 hrs
  • Avg battery life on low: 4.75 hours
  • Pros: Ultralight. USB-C. Great price. Full strap headband. Brighter than average for its weight. Solid ingress protection.
  • Cons: Poor battery life.

A5 Hat Clip Flashlight

RovyVon Aurora A5 Hat Clip Flashlight

While not technically a headlamp, this little RovyVon Aurora A5 Flashlight recreates headlamp functionality by clipping to the bill of your cap. And in doing so, it saves about .5-1.0 ounces of cord/strap weight. The biggest issue is that you are less likely to be wearing a cap at night, since the sun is down and you will likely have switched to a beanie. But if you rely on hoods for head warmth, or don’t mind putting your cap back on, then it’s no issue at all. And of course, you can always just hold it in your hand too.

Beyond the wearing dynamics, it packs a big punch for something so small. 650 max lumens is impressive, and though the mAh-to-weight ratio is pretty good, the overall battery life is a bit sub par.

  • Price: $37
  • Weight: .8 oz
  • Max Lumens: 650
  • Battery: 330mAh
  • mAh/oz: 412
  • Dust/Water Protection: IPX6
  • Plug: USB-C
  • Avg battery life on high: 1.5 hrs
  • Avg battery life on low: 8 hrs
  • Pros: Super ultralight. Affordable. Surprisingly bright.
  • Cons: Small battery. Requires the bill of a cap to function as a headlamp. Not dust protection rated.

Best Ultralight Headlamp Charger

Nitecore NB10000 Gen 2

Nitecore NB10000 Gen 3

With an impressive mAh-to-weight ratio of 1887, the Nitecore NB10000 Gen 2 has better stats than any other backpacking battery pack. It offers two or more complete phone recharges for only 5.3 ounces. It’s the most ultralight unit in the 10k mAh-class, and certainly the best overall performer.

See more in our complete guide to battery packs.

  • Price: $65
  • Power: 10,000 mAh
  • Weight: 5.3 oz
  • mAh/oz: 1887 mAh
  • Ports: 2 USB-C
  • Built-in Cable: None
Nitecore NB Air 5000

Nitecore NB Air 5000

The new Nitecore NB Air 5000  is the lightest weight 5k mAh unit on the market, and the best way to carry one full phone recharge into the backcountry. In the 5k mAh category, it immediately invalidates all competing options from the likes of BioLite and InfinityLab, both of which are significantly heavier, more expensive, and lack power indicators and IPX ratings.

See more in our complete guide to battery packs.

  • Price: $40
  • Power: 5,000 mAh
  • Weight: 3.1 oz
  • mAh/oz: 1,612 mAh
  • Ingress rating: IPX7
  • Ports: 1 USB-C

top down view of Ultralight Headlamps

Expanded Criteria For Ultralight Headlamp Shoppers

Choose a Rechargeable Ultralight Headlamp

If your headlamp runs on AAA batteries, it’s time to upgrade. Not only are traditional batteries wasteful, heavier, and more expensive in the long term, they are simple less effective. The ability to recharge in the backcountry with a power bank means you never have to bring spare batteries, or worry about running out of juice. Simply put, rechargeability is now mandatory, everyone should carry a power bank, and headlamps without rechargeability are officially obsolete.

Choose a bright ultralight headlamp >300 Lumens

When choosing or forced to hike at night, you do not want to be stuck with a dim headlamp. It is a safety and navigational liability. And because there are plenty of good, lightweight, economical, bright headlamps available on the market, there is simply no reason to settle for something dim. We recommend models with at least 300 lumen output at minimum, but prefer to have access to 400 if possible.

Choose an low weight Headlamp

We define an ultralight headlamp as any model weighing less than two ounces. While the more standard three ounce models are only one ounce heavier, that represents a 50% to 100% weight increase over models in the 1.5-2.0 oz range. With headlamps, a minimalist headband can often save as much weight as a lighter lamp. For the typical person embarking on a bog standard backpacking trip in the middle of hiking season (May-September), there just aren’t many good reasons to not choose an ultralight headlamp.

Choose a Long Lasting ultralight Headlamp

When choosing models for this guide, we analyzed battery power, mAh/weight ratio, and battery lifespan on high and low using manufacturer provided stats. This data had a big influence on our selection, and it should for you too. Many popular ultralight headlamps and lightweight headlamps for backpacking were cut based on having merely average lifespan. If it’s not better than average, there’s no reason to settle.

Choose an ultralight headlamp with USB-C Port

At time of publication, most electronic gear is transitioning from micro-USB charging ports to USB-C charging ports. USB-C is faster, and uses more modern tech. We expect all models to switch to USB-C in the coming years, but for now, it can be annoying to have to bring both cords. While not a strict requirement, we prefer USB-C because it’s a step towards future, rather than the past, and soon enough all gadgets will share this cord.

Choose a headlamp with water and dust protection

When shopping for a headlamp for backpacking, you probably noticed stats that look like IP67 or IPX6. IP stands for “ingress protection” and the following numbers refer to its rating against penetration from dust and water. A model that is rated IP67 scores a six on dust resistance and a 7 on water resistance. Other models may read as IPX6, for example. In this case, the X implies it has not been rated for dust, but has been rated for water protection. The X does not necessarily mean it is easily compromised by dust or sand, but simply that it has not been rated. Read more about IP code on Wikipedia.

Other nice to have ultralight headlamp headlamp features

In no particular order:

  • button lock – okay this is mandatory, but they all now have it
  • gradient dimming/brightening spectrum, as opposed to incremental settings
  • red/blue/green lighting, which can be useful in the tent to avoid waking a partner
  • strobe lightning for emergency signaling
  • downwards tilt frame, so as not blast light into your friends eyes at camp
Best Headlamp for backpacking-1

Conclusion To The Best Ultralight Headlamp For Backpacking

Thank you for reading our guide to the best ultralight headlamp for backpacking. These are the models we have had the best experience with, are most statistically superior, and positively reviewed by customers and experts alike. While for most backpacking we recommend an ultralight headlamp, there are scenarios where something brighter is completely justified, especially in fall and winter. Happy hiking!

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