Astrolux S43 LH351D flashlight review
The Astrolux S43 LH351D flashlight was released in 2018. It uses 4 x Samsung LH351D LEDs, TIR reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 4000 lm output, 8464 cd intensity, and a beam distance of 184 m.
Wondering if this Astrolux flashlight is a must-have? Keep reading to find out!
Table of Contents
- Astrolux S43 LH351D 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 S43 LH351D is a powerful and reliable flashlight. It has impressive illumination and durable construction. TIR lens plays a significant role in shaping the beam pattern of the S43 LH351D flashlight. The S43 LH351D's mode memory makes the user experience more seamless and intuitive. It has a strobe function, which is one of the most effective self defense tools available. This USB rechargeable flashlight has become popular.
Astrolux S43 LH351D specifications
| Brand | Astrolux |
|---|---|
| Name | S43 LH351D |
| Type | S43LH351D |
| Rating | |
| Launch | 2018 |
| Form | flashlight |
The S43 LH351D flashlight enhances safety.
Body, materials, weight, colors
| Weight | 60 g |
|---|---|
| Length | 88.7 mm |
| Head diameter | 27 mm |
| Material | aluminium alloy body with HAIII hard-anodized finish |
| Colors | black |
An extremely lightweight handheld flashlight weighs 60 g. Consider the length of the flashlight, it should fit comfortably in your chosen way to carry it. The aluminium body of the S43 LH351D has a reputation for being durable and strong. The body of S43 LH351D flashlight treated with a Type III hard-anodized, anti-abrasive finish. This flashlight comes in a sleek black color option.
System, LED, lens, reflector
| Emitter | 4 x Samsung LH351D LEDs |
|---|---|
| Color temperature | 5000 K |
| Reflector | TIR |
| Lens | TIR |
| Switch | electronic side |
The emitter of S43 LH351D manufactured by Samsung, a Korean LED manufacturer. Color temperature is used to quantify the color appearance of light sources. The S43 LH351D's TIR lens is made of a single piece of transparent material. The flashlight has electronic switches.
Performance, flux, intensity, throw
| Flux | 4000 lm |
|---|---|
| Intensity | 8464 cd |
| Throw | 184 m |
| CD/LM factor | 2.12 |
| CRI | 95 |
The S43 LH351D flashlight has 4000 lm. It will provide an exceptionally bright and powerful beam of light. The S43 LH351D flashlight has 8464 cd, it provides a much brighter and more intense beam. The throw distance is the farthest distance the flashlight can light an object. The cd/lm factor is the candela-to-lumen ratio. It shows how concentrated a light source's output is. A flashlight with a higher CRI can show colors more accurately. The flashlight has a CRI of 95. It can show colors with exceptional accuracy.
Software, user interface, modes
| Firmware | NarsilM |
|---|---|
| Mode memory | yes |
| Ramping mode | yes |
| Strobe | yes |
| SOS/Beacon | yes |
NarsilM is an open-source firmware designed for flashlights, it is similar to Anduril. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. The S43 LH351D's ramping mode is easy to use. It lets you smoothly change the output over its whole range. The S43 LH351D is tactical strobe ready. The strobe light is disorienting to the person it is aimed at, this makes it hard for them to concentrate. The SOS signal is an international distress call.
Features, battery, protections
| Battery | 1 x 18650 Li-Ion battery |
|---|---|
| Battery indicator | yes |
| Charger port | microUSB |
| LVP | yes |
| Thermal regulation | yes |
| Protection | IPx6 |
| AUX LEDs | no |
| Magnetic | no |
The Astrolux S43 LH351D flashlight is powered by 1 x 18650 Li-Ion battery. The battery indicator lets you know when the battery is low, charging, or fully charged. This flashlight can charge the battery with a built-in charger. LVP (Low Voltage Protection) is designed to protect the battery. The thermal protection feature helps prevent overheating. The IPx6 rating indicates that the flashlight has a protection against water jets.
Accessories, package contents
| Package contents | 18350 tube clip lanyard spare o-ring survival hammer |
|---|
With a clip, you can fasten the flashlight to a reachable spot. The lanyard prevents accidental loss of the flashlight. Replacing worn or damaged O-rings helps a lot.
Links
| Official site | https://flashlight.nitecore.com/ |
|---|
Conclusion, pros and cons
This Astrolux 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
- TIR lens
- side switch
- strong flux
- superior CRI
- NarsilM firmware
- mode memory
- ramping mode
- tactical strobe
- SOS/beacon function
- battery indicator
- USB charger
- low-voltage protection
- thermal regulation
- waterproof
- clip
Cons
- no auxiliary LEDs
- non-magnetic
Photos
Comparisons
According to our statistics, the Astrolux S43 LH351D flashlight was most often compared on our site with the following flashlights.
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Updated: April 23, 2024
