Acebeam H50 Osram 1250lm review. Is it worth it in 2023?

3 x Osram KW CSLNM1.TG LED
1250 lm output
10900 cd intensity
1 x 18650 Li-Ion battery

The Acebeam H50 Osram (H50O) released in 2020. It uses 3 x Osram KW CSLNM1.TG LED, TIR reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this headlamp provides up to 1250 lm output, 10900 cd intensity, and a beam distance of 209 m.

This Acebeam headlamp is high-performance and versatile device. Headlamps play a crucial role in safety, particularly during nighttime or in emergency situations. They enhance visibility for both the wearer and others around them, reducing the risk of tripping, falling, or colliding with obstacles. It uses a TIR lens to form the beam pattern. This light has 5 modes of lighting. Instead of having to cycle through multiple modes to find the desired setting, mode memory of H50 Osram ensures that the flashlight starts in the mode you prefer or need. The flashlight is rechargeable easily via USB port.

Table of contents:

Acebeam H50 Osram (H50O) specifications

NameH50 Osram
Rated 4/5 based on 1096 user votes.

Headlamps are versatile lighting tools that provide convenience, hands-free operation, and illumination in a wide range of activities and environments. Whether you're exploring the great outdoors or working on projects in low-light conditions, a headlamp can be a valuable accessory to have.


Weight62 g
Length83 mm
Body diameter26 mm
Head diameter33 mm
Dimensions83 x 33 x 26 mm
Materialaluminium alloy with HAIII hard-anodized finish

This 62 g flashlight would generally be considered lightweight and easy to handle for most people. The ideal length of a flashlight depends on personal preference, intended use, and the specific features and functionality you're looking for. Aluminium body of H50 Osram is known for its durability and strength. It offers excellent resistance to impacts, scratches, and corrosion, making it suitable for rugged outdoor use or in demanding environments.

Hard-Anodized Type III (HAIII) is a specific anodizing process that creates a thicker and harder oxide layer compared to regular anodizing. It involves subjecting the aluminum to a higher voltage and a sulfuric acid bath, resulting in a dense and durable coating. The H50 Osram flashlight is available in black.


Emitter3 x Osram KW CSLNM1.TG LED
Color temperature6500 K
Switchelectronic side

Osram LEDs are known for their high performance, energy efficiency, and reliability. They provide a range of options in terms of brightness, color temperature, color rendering, and beam characteristics to meet different lighting requirements. The choice of color temperature depends on the specific lighting application and personal preferences. A TIR lens works on the principle of total internal reflection. The TIR lens collimates the LED light into efficient, well-controlled light beams that maximize the usable lumens in the target area. The H50 Osram has electronic switch. Some flashlights with electronic switches have programmable features that allow users to customize the behavior of the flashlight. This may include setting specific modes, configuring brightness levels, or enabling unique functions according to individual preferences.


Flux1250 lm
Intensity10900 cd
Throw209 m
CD/LM factor8.72

With 1250 lm, the H50 Osram flashlight will offer a brighter and more powerful beam of light. This higher output can be advantageous in various situations where you require enhanced visibility or need to illuminate larger areas. The H50 Osram flashlight with 10900 cd has an extended throw distance, allowing you to illuminate objects or areas at greater distances. This can be advantageous for outdoor activities, search and rescue operations, or scenarios where long-range visibility is required.

The throw is the calculated distance in meters at which the flashlight produces a light intensity of 0.25 lux. The cd/lm factor (candela-to-lumen ratio) provides information about how concentrated or focused the light output of a light source is. A higher cd/lm ratio indicates that the light is more concentrated in a specific direction, while a lower ratio indicates a more diffused or spread-out light output.


Modes5 modes
Mode memoryyes
Ramping modeno

Modes on a flashlight refer to different output settings or levels of brightness that can be selected to suit different needs and preferences. The H50 Osram has mode memory. 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. SOS mode of the H50 Osram produces a specific sequence of long and short flashes to signal distress or emergency situations. It is commonly used in outdoor adventures or survival scenarios.


Battery1 x 18650 Li-Ion battery
Battery indicatoryes
Charger portUSB Type-C
Thermal regulationyes

The H50 Osram flashlight utilizes 1 x 18650 Li-Ion battery as its power source. The H50 Osram has a battery indicator. A battery indicator is a feature that provides information about the remaining power level of the flashlight's battery. It helps users monitor the battery status and estimate how much runtime they have left before the battery needs to be recharged or replaced. This flashlight can charge the battery with an integrated charger, and it works with a USB power source.

LVP (Low Voltage Protection) is designed to protect the battery from being over-discharged, which can lead to reduced battery life or even permanent damage. The built-in thermal control automatically adjusts brightness output to prevent overheating. The "8" in the IPx8 rating indicates the highest level of protection against water ingress.


Package contents2 x spare o-rings
USB Type-C cable

Having spare O-rings allows you to replace them as needed, ensuring that the flashlight maintains its water-tight seal and remains protected from moisture or water ingress.

The performance of the Acebeam H50 Osram 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.

The specifications above 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 Acebeam H50 Osram, then don’t hesite and signal the problem to us.

Acebeam H50 Osram (H50O) pictures

Acebeam H50 Osram / H50O photo
Acebeam H50 Osram / H50O photo
Acebeam H50 Osram / H50O photo
Acebeam H50 Osram / H50O photo
Acebeam H50 Osram / H50O photo
Acebeam H50 Osram / H50O

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