Acebeam H40 SST20 headlamp review
The Acebeam H40 SST20 headlamp was released in 2019. It uses Luminus SST20 LED, OP reflector and 1 x 14500 Li-Ion or 1 x AA NiMH battery. The powerful emitter in this headlamp provides up to 600 lm output, 4104 cd intensity, and a beam distance of 128 m.
Excited to learn if the H40 SST20 lives up to expectations? Read on!
Table of Contents
- Acebeam H40 SST20 specifications
- Body, materials, weight, colors
- System, LED, lens, reflector
- Performance, flux, intensity, throw
- Software, user interface, modes
- Features, battery, protections
- Accessories, package contents
- Links
- Conclusion, pros and cons
- Photos
- Comparisons
The content of this article reflects our own experiences and viewpoints. We aim to offer insights on a topic, and we hope others find it helpful and motivating. Additionally, we make every effort to provide accurate and comprehensive coverage.
The H40 SST20 is useful when you need to use both hands. This light has 3 modes of lighting. The H40 SST20 mode memory eliminates the need to cycle through modes. It provides convenience and saves time.
Acebeam H40 SST20 specifications
| Brand | Acebeam |
|---|---|
| Name | H40 SST20 |
| Type | H40SST20 |
| Rating | |
| Launch | 2019 |
| Form | headlamp |
Headlamps have a light attached to a headband. This allows users to wear them without using their hands.
Body, materials, weight, colors
| Weight | 34 g |
|---|---|
| Length | 64.7 mm |
| Body diameter | 23.4 mm |
| Head diameter | 26.9 mm |
| Material | aluminium alloy with HAIII hard-anodized finish |
| Colors | black |
The H40 SST20 is small, compact, and designed for ultra-portability. The length of a flashlight can affect how it feels in your hand and how you can grip it. The aluminium body of the H40 SST20 has excellent thermal conductivity. The body of H40 SST20 flashlight treated with a Type III hard-anodized, anti-abrasive finish. The H40 SST20 flashlight comes in a stylish black color.
System, LED, lens, reflector
| Emitter | Luminus SST20 LED |
|---|---|
| Color temperature | 4000 K |
| Reflector | OP |
| Lens | toughtened AR coated glass |
| Switch | electronic side |
Luminus has established a positive reputation as a reliable LED manufacturer. Warm, white light is generally more comfortable. The designers of the H40 SST20 incorporated an orange peel reflector to enhance the beam. The AR coating reduces the loss of light due to reflections, allowing more light to pass through the lens. The electronic switches may have a higher chance of standby drain.
Performance, flux, intensity, throw
| Flux | 600 lm |
|---|---|
| Intensity | 4104 cd |
| Throw | 128 m |
| CD/LM factor | 6.84 |
| CRI | 95 |
600 lm can provide a decent amount of brightness and be suitable for many everyday tasks. The H40 SST20 flashlight has 4104 cd, it provides a much brighter and more intense beam. The throw is the distance in meters at which the flashlight produces a light intensity of 0.25 lux. Candela per lumen (cd/lm) measures a flashlight's beam intensity. If accurate color is a priority for you, choose a flashlight with a CRI of 90 or above. The H40 SST20 flashlight has a CRI of 95, it offers the best color representation.
Software, user interface, modes
| Modes | 3 modes |
|---|---|
| Mode memory | yes |
| Ramping mode | yes |
| Strobe | no |
| SOS/Beacon | yes |
A flashlight's modes are different output settings or brightness levels. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. The ramping mode has an advantage. It offers precise control over the light amount emitted by the flashlight. The H40 SST20's SOS mode produces a specific sequence of long and short flashes.
Features, battery, protections
| Battery | 1 x 14500 Li-Ion or 1 x AA NiMH battery |
|---|---|
| Battery indicator | no |
| Charger port | no |
| LVP | yes |
| Thermal regulation | no |
| Protection | IP68 |
| AUX LEDs | no |
| Magnetic | no |
The H40 SST20 flashlight's power source is 1 x 14500 Li-Ion or 1 x AA NiMH battery. The H40 SST20 cannot charge batteries. You may need an external charger to keep your battery going. The flashlight detects when the battery's voltage has dropped to a certain level. Flashlights without thermal protection may rely on other design elements to dissipate heat. The "6" in the IP68 rating shows the level of protection. The "8" in the IP68 rating means the highest level of protection.
Accessories, package contents
| Package contents | 2 x spare o-rings headband |
|---|
When using spare O-rings, follow the maker's instructions.
Links
| Official site | https://www.acebeam.com/ |
|---|
Conclusion, pros and cons
This Acebeam flashlight, like any other, has its strengths and weaknesses. Let's take a close look at both sides to understand this flashlight better. I share my thoughts on its standout features and the parts that might need improvement. Keep in mind, these are just my opinions, and you might have a different perspective.
Pros
- lightweight
- aluminium body
- warm light
- OP reflector
- AR coated lens
- side switch
- superior CRI
- multiple modes
- mode memory
- ramping mode
- SOS/beacon function
- low-voltage protection
- dust protected
- waterproof
Cons
- moderated performance
- low intensity
- no battery indicator
- no built-in charger
- no thermal regulation
- no auxiliary LEDs
- non-magnetic
Photos
Comparisons
According to our statistics, the Acebeam H40 SST20 flashlight was most often compared on our site with the following flashlights.
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Updated: April 28, 2024
