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  • Picture of H40 1 x AA/14500 Running Headlamp
  • Picture of H40 1 x AA/14500 Running Headlamp
Picture of H40 1 x AA/14500 Running Headlamp
Picture of H40 1 x AA/14500 Running Headlamp
Picture of H40 1 x AA/14500 Running Headlamp
Product tags
#headlamp acebeam (11)

H40 1 x AA/14500 Running Headlamp

$39.90

H40 is a simple, compact, lightweight running headlamp with tremendous power and reliability. Equipped with one CREE XP-L HD LED, this high-performance headlamp provides you with a fuller, more evenly-lit view at night. It features infinite dimming outputs ranging from 230lumens to 15lumens by Li-ion battery, ranging from 230lumens to 20lumens by Ni-MH or Alkaline AA battery, and an SOS mode for emergency situations. There is another version for optional, which is equipped with one Luminus SST-20 CRI 95+ LED, this allows a warm and soft beam to resemble the nature of sunlight, reducing eye strain and makes it ideal for photography. The headlamp's body is constructed from aerospace-grade and hard-anodized aluminum, letting it withstand drops from as high as 2 meters and allowing it to be waterproof to IP68. Super lightweight, remarkably rugged, and incredibly user-friendly, H40 headlamp is one perfect light for any outdoor activities!

Availability: Out of stock
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Features:

Option 1:
1.1xCREE XP-L HD LED
2.Powered by 1x14500 Li-ion (700mAh)/ 14500 Ni-MH (2500mAh) / AA Alkaline battery (excluded)
A)1x14500 Li-ion (700mAh) battery:
Moonlight: 1 lumen; 29 hours; 2m; 7cd
High∞Low: 230∞15 lumens; 65 mins ∞ 10 hours; 53m ∞ 13m; 726cd ∞ 46cd
Turbo: 1050~350 lumens; 1min + 40 mins; 117m; 3454cd
SOS: ~, 12 hours

B)1x14500 Ni-MH (2500mAh) battery:
Moonlight: 1 lumen; 50 hours; 2m; 7cd
High∞Low: 230∞15 lumens; 85 mins ∞ 20 hours; 53m ∞ 13m; 726cd ∞ 46cd
Turbo: 270 lumens; 80 mins; 60m; 885cd
SOS: ~, 18 hours

C)1xAA Alkaline battery:
Moonlight: 1 lumen; 60 hours; 2m; 7cd
High∞Low: 230∞15 lumens; 68 mins ∞ 22 hours; 53m ∞ 13m; 726cd ∞ 46cd
Turbo: 270~130 lumens; 2 mins + 70 mins; 60m; 885cd
SOS: ~, 7 hours

3.Max output up to 1050 lumens
4.Max running time 60 hours
5.Max beam distance 117 meters
6.Peak beam intensity 3454cd


Option 2:
1.1xSST-20 CRI 95+ LED
2.Powered by 1x14500 Li-ion (700mAh)/ 14500 Ni-MH (2500mAh) / AA Alkaline battery (excluded)
A)1x14500 Li-ion (700mAh) battery:
Moonlight: 1 lumen; 29 hours; 2m; 7cd
High∞Low: 150∞10 lumens; 65 mins ∞ 10 hours; 64m ∞ 18m; 1039cd ∞ 88cd
Turbo: 600~220 lumens; 1 min + 40 mins; 128m; 4104cd
SOS: ~, 12 hours

B)1x14500 Ni-MH (2500mAh) battery:
Moonlight: 1 lumen; 50 hours; 2m; 7cd
High∞Low: 150∞10 lumens; 85 mins ∞ 20 hours; 64m ∞ 18m; 1039cd ∞ 88cd
Turbo: 180 lumens; 80 mins; 70m; 1223cd
SOS: ~, 18 hours

C)1xAA Alkaline battery:
Moonlight: 1 lumens; 60 hours; 2m; 7cd
High∞Low: 150∞10 lumens; 68 mins ∞ 22 hours; 64m ∞ 18m; 1039cd ∞ 88cd
Turbo: 180~100 lumens; 2 min + 70 mins; 70m; 1223cd
SOS: ~, 7 hours

3.Max output up to 600 lumens
4.Max running time 60 hours
5.Max beam distance 128 meters
6.Peak beam intensity 4104cd

7.Impact resistance: 2 meters
8.Waterproof: IP68
9.Size: 64.7x26.9x23.4mm
10.Weight: 34g without battery
11.Single button switch for controlling infinitely brightness
12.Constructed from Aero grade Aluminum Alloy
13.Premium type Ⅲ hard-anodized anti-abrasive finish
14.Confirmtable Elastic Headband with sweat channeling and reflective
15.Over-heat protection to avoid high-temperature of the surface
16.Toughened ultra-clear glass lens with anti-reflective coating, which achieves a 98.3% light transmittance

Existing reviews
Good back up light
This H40 headlamp was part of the bundle I bought and, even though it came pretty well used, it still works just fine for what it is. For a simple, lightweight AA/14500 headlamp with a nice even beam it’s actually a decent little backup, especially considering how cheap it was in the lot.
[hide member info] | 12/23/2025 12:31 AM
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Great Value
Great price for a headlamp with this level of performance!
Lo | 8/31/2021 10:18 AM
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Indoor usage experience
I bought this headlight for reading books for my kid before sleeping. I selected HI CRI version.
So here is several points about my usage experience:
- the headlamp (at least SST option) has too tight hotspot. Thats good for throw but was inappropriate for my needs, so I’ve made small tuning: l’ve insert frosted film between glass lens and bezel.
- the UI is almost the best. It has momentary moonlight, smooth ramping, possibility to increase or decrease brightness, separate turbo (you shouldn’t worry about stepdown working with other mode). For my particular needs it was better to have ramping from moonlight. Actually, I think, such UI is the best EDC (why Acebeam don’t make EDC with such UI?)

Everything else corresponds product description.

One more point: I’ve tested this headlamp outside, and the constant brightness is enough for a walk or even run, but I think that XPL version will be better for such usage.
Mykola | 5/25/2021 4:49 AM
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BECOME AN ACEBEAM® DISTRIBUTOR

Become an Acebeam Distributor: Precision Illumination for Professionals

Become an Acebeam Distributor: Precision Illumination for Professionals

In the field, whether you are navigating a complex cave system, conducting a tactical patrol, or executing a search and rescue operation, reliable illumination is not a luxury—it is a critical survival tool. At Acebeam, we understand that professionals demand absolute precision. We do not manufacture toys; we engineer high-performance lighting instruments designed to withstand extreme conditions.

As we expand our global footprint from our engineering hub in Shenzhen, we are seeking qualified distributors who share our uncompromising standards. We are looking for partners capable of representing a brand built on technical excellence and rugged durability.

Our Engineering Philosophy
Acebeam products are defined by their specifications and reliability. Our portfolio includes high-lumen searchlights, long-range LEP (Laser Excited Phosphor) technology, and tactical tools built to military-grade standards. We utilize advanced thermal management systems to ensure consistent output and strict quality control to guarantee IP68 waterproofing and impact resistance. When you distribute Acebeam, you are providing end-users with equipment that performs when failure is not an option.

Partner Requirements
We invite established companies in the outdoor, tactical, law enforcement, and industrial sectors to apply. Ideal partners possess:

  • A proven track record in distributing professional-grade gear.
  • A deep understanding of the technical requirements of serious outdoor enthusiasts and first responders.
  • The logistical capability to provide localized support and service.

The Partnership
Becoming an Acebeam distributor grants you access to a comprehensive range of cutting-edge lighting solutions. You will receive full technical documentation, marketing assets rooted in factual performance data, and priority access to our latest innovations. We value long-term relationships built on mutual growth and technical integrity.

If your organization is equipped to handle the demands of the professional lighting market, we invite you to join our network.

Application Process
Please submit your company profile and distribution plan to our partnership team. We review every application with a focus on technical competence and market reach.

Equip your market with the light they can trust. Partner with Acebeam.

Find out more