Acebeam D45 diving light review

Cree XHP70 LED
4000 lm output
35000 cd intensity
3 x 18650 Li-Ion batteries

The Acebeam D45 diving light released in 2017. It uses Cree XHP70 LED, OP reflector and 3 x 18650 Li-Ion batteries. The powerful emitter in this diving light provides up to 4000 lm output, 35000 cd intensity, and a beam distance of 374 m.

Wondering if the Acebeam's diving light is a must-have? Keep reading to find out!

Table of Contents

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. If you found an error or something lacking in the specifications for the Acebeam D45, then tell us.

Acebeam D45 / D45

This light has 4 modes of lighting. The D45 flashlight recalls the last used mode. So, you don't need to access higher brightness levels unless you need to.

Acebeam D45 specifications

Rated 3 / 5 based on 1412 user votes.
Formdiving light

Acebeam D45 / 2

Body, materials, weight, colors

Weight436 g
Length166.5 mm
Body diameter43.9 mm
Head diameter58 mm
Materialaluminium alloy with HAIII hard-anodized finish

The flashlight is a bit heavy, its weight is 436 g. A smaller flashlight is easier to carry in a pocket, bag, or pouch. This makes it more convenient for everyday use or when you're on the go. Aluminium is a lightweight material, which is beneficial for D45 flashlight. The body of D45 flashlight treated with a Type III hard-anodized, anti-abrasive finish. This flashlight comes in a sleek black color option.

Acebeam D45 / 1

System, LED, lens, reflector

EmitterCree XHP70 LED
Color temperature6500 K
LensAR coated glass
Switchelectronic side

Cree is widely regarded as a reputable LED manufacturer. Warm, white light is generally more comfortable. It's also less harsh on the eyes than cool, white light. The OP reflector is a specific type of reflector, it is commonly used in flashlights. The AR coating of the lens helps to reduce these reflections. It does this by changing the lens surface's refractive index. The electronic switches may have a higher chance of standby drain.

Performance, flux, intensity, throw

Flux4000 lm
Intensity35000 cd
Throw374 m
CD/LM factor8.75

The D45 flashlight has 4000 lm. It will provide an exceptionally bright and powerful beam of light. The D45 flashlight has 35000 cd. It can light objects at greater distances. The throw distance is the farthest distance the flashlight can light an object. Candela per lumen (cd/lm) measures a flashlight's beam intensity. It compares this to its total luminous flux or output.

Software, user interface, modes

Modes4 modes
Mode memoryyes
Ramping modeno

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. It stays in that mode when you turn it on again. The SOS flashes Morse code so you can signal for help when needed.

Features, battery, protections

Battery3 x 18650 Li-Ion batteries
Battery indicatorno
Charger portno
Thermal regulationno
Protectiondepth 200 meters

The D45 flashlight's power source is 3 x 18650 Li-Ion batteries. It provides reliable, long-lasting energy for top performance. The D45 doesn't have charger port. LVP (Low Voltage Protection) is designed to protect the battery. It stops over-discharging, which can reduce battery life or cause permanent damage. This flashlight doesn't have built-in temperature control.

Accessories, package contents

Package contents2 x spare o-rings
ball arm
hexagon wrench
nylon holster
plastic holster

The package includes a holster. It is designed to protectively store your flashlight. The lanyard prevents accidental loss of the flashlight. When using spare O-rings, follow the maker's instructions. Use their guidelines for proper installation.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the D45 flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

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.


  • aluminium body
  • OP reflector
  • AR coated lens
  • side switch
  • strong flux
  • super bright
  • multiple modes
  • mode memory
  • SOS/beacon function
  • low-voltage protection
  • protective holster


  • cool light
  • no battery indicator
  • no built-in charger
  • no thermal regulation
  • no auxiliary LEDs
  • non-magnetic


Acebeam D45 / D45 photo 1.
Acebeam D45 / D45 photo 2.
Acebeam D45 / D45 photo 3.
Acebeam D45 / D45

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David Hagon
I love bushcraft and flashlights. I find joy in mastering wilderness survival skills and exploring the realm of illuminating gadgets. Bushcraft isn't just fun, it's a learning journey. I form a strong bond with nature. It's more than a hobby, it enriches me in practical and spiritual ways.
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