Astrolux S43S XP-L 4600lm In-depth review, Pros and Cons

4 x Cree XP-L HI LEDs
4600 lm output
8464 cd intensity
1 x 18650 Li-Ion battery

The Astrolux S43S XP-L (S43SXPL) released in 2020. It uses 4 x Cree XP-L HI LEDs, TIR reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 4600 lm output, 8464 cd intensity, and a beam distance of 184 m.

The S43S XP-L flashlight is an essential tools for emergency preparedness. In situations like natural disasters or blackouts, when electricity is unavailable, a flashlight becomes crucial for navigating dark areas. TIR lenses of the S43S XP-L are engineered to optimize optical efficiency by reducing light scattering and minimizing lens artifacts. With mode memory, when you turn off the S43S XP-L and then turn it back on again, it will automatically activate the mode that was last used before it was turned off.

The strobe function produces a high-frequency flashing light pattern that is designed to disorient or distract potential threats or aggressors. This USB rechargeable flashlight is designed to be compact and lightweight, making them highly portable and easy to carry.

Astrolux S43S XP-L (S43SXPL) pictures

Astrolux S43S XP-L / S43SXPL photo 1.
Astrolux S43S XP-L / S43SXPL photo 2.
Astrolux S43S XP-L / S43SXPL photo 3.
Astrolux S43S XP-L / S43SXPL photo 4.
Astrolux S43S XP-L / S43SXPL photo 5.
Astrolux S43S XP-L / S43SXPL photo 6.
Astrolux S43S XP-L / S43SXPL photo 7.
Astrolux S43S XP-L / S43SXPL photo 8.
Astrolux S43S XP-L / S43SXPL photo 9.
Astrolux S43S XP-L / S43SXPL

The specifications below are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Astrolux S43S XP-L, then don’t hesite and signal the problem to us.

Astrolux S43S XP-L (S43SXPL) specifications

NameS43S XP-L
Rated 4 / 5 based on 1370 user votes.

The presence of a flashlight can provide a sense of reassurance and confidence in unfamiliar or potentially dangerous environments.


Weight60 g
Length88.7 mm
Head diameter27 mm
Materialcopper head, aluminium alloy body with HAIII hard-anodized finish

The 60 g flashlight may not provide the same level of brightness or features as larger models. The ideal length of a flashlight depends on personal preference, intended use, and the specific features and functionality you're looking for. The aluminium bodies can be anodized, providing a protective layer and a wide range of color options for flashlight bodies. The HAIII process produces a hard and wear-resistant surface on the aluminum, making it more resistant to scratches, abrasions, and impacts. This flashlight features a captivating black color.


Emitter4 x Cree XP-L HI LEDs
Color temperature5000 K, 6500 K
Switchelectronic side

Cree LEDs are trusted by lighting professionals and have gained a strong reputation for quality and performance. The choice of color temperature depends on the specific lighting application and personal preferences. This TIR lens offers flexibility in achieving various beam patterns, from wide-angle illumination to focused spotlights. Some flashlights with electronic switches have programmable features that allow users to customize the behavior of the flashlight.


Flux4600 lm
Intensity8464 cd
Throw184 m
CD/LM factor1.84

With 4600 lm, the S43S XP-L flashlight will provide an exceptionally bright and powerful beam of light. With 8464 cd, the S43S XP-L flashlight provides a noticeably brighter and more intense beam of light. The throw distance refers to the maximum distance at which the flashlight can effectively illuminate an object or target. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam.


Mode memoryyes
Ramping modeyes

NarsilM offers various customization options, allowing users to tailor the flashlight's behavior to their specific needs. Mode memory means that the flashlight will remember the mode you were using when the light was last turned off, and when you turn it on again. Instead of having predefined brightness levels or fixed modes, the ramping mode lets you adjust the light intensity seamlessly within a specific range.

The strobe function is designed to create a disorienting or attention-grabbing effect. The SOS code consists of three short signals, followed by three long signals, and then three short signals again.


Battery1 x 18650 Li-Ion battery
Battery indicatoryes
Charger portmicroUSB
Thermal regulationyes

The S43S XP-L flashlight utilizes 1 x 18650 Li-Ion battery as its power source. The battery indicator helps prevent unexpected power failures during critical situations and ensures that the flashlight is ready for use when needed. USB rechargeable flashlights have become increasingly popular in recent years due to their convenience and sustainability. The Low Voltage Protection helps to preserve the battery's capacity and prevent it from reaching a critically low voltage level.

The S43S XP-L has thermal protection feature. The thermal protection mechanisms are designed to monitor and regulate the temperature of the flashlight during operation. The IPx6 rating indicates that the flashlight has a protection against water jets.


Package contents18350 tube
spare o-ring
survival hammer

The clip allows you to attach this flashlight to a belt, pocket, backpack, or other items, enabling convenient hands-free carry. The lanyard of S43S XP-L helps protect the flashlight from accidental damage by preventing it from falling or hitting the ground. Instead of searching for compatible O-rings, having spare O-rings readily available allows for convenient and immediate repairs or replacements.

The performance of the Astrolux S43S XP-L flashlight is measured according to the ANSI / NEMA FL1 Standard 30 seconds after switching the light on. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

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