Acebeam E75 Nichia 519A 5000K Torch Review
Acebeam E75 Nichia 519A 5000K⌗
- Specifications
- Introduction
- Torch in use
- Build quality
- LED, bezel, lens, reflector and beam
- Size and comparison
- User interface
- Batteries and charging
- Performance
- Beamshots
- Conclusion
- Price
- Product page
Specifications⌗
| Brand/model | Acebeam E75 |
|---|---|
| LED | 4*Nichia 519A 5000K CRI90 |
| Maximum lumens | 3,000 lm |
| Maximum beam intensity | 11,025 cd |
| Maximum throw | 210 m |
| Battery | 1*21700 |
| Onboard charging | Yes (USB-C) |
| Material | Aluminium |
| Modes | 6 |
| Blinkies | Strobe |
| Reflector | Smooth |
| Waterproof | IP68 |
| Review date | September 2023 |
Introduction⌗
The Acebeam E75 is a 21700 sized torch with four emitters, a strike bezel, built-in USB-C charging, battery level indicators, and an electronic side-switch. This particular version has Nichia 519A 5000K 90 CRI emitters. It is also available in cool white with a 6500K colour temperature.
I have reviewed multiple EDC torches by Acebeam and the build quality has been excellent. I am keen to see what the quality is like for the E75. Acebeam’s drivers are often efficient and have excellent output regulation.
I was not sure what to think of the Acebeam E75 before it arrived. Do we have too many options with quad emitters? Emisar D4V2, D4SV2, D4K and Sofirn IF25A come to mind.
But after using it for a few weeks, could this be one of the best EDC torches for 2023?!
Acebeam provided this torch for review. I have not been paid for this review nor have I held back my opinions of this torch.
Packaging⌗
The Acebeam E75 comes in a dark gray box with an outline of the torch on the front.
The following was included in the box:
- Acebeam E75.
- Acebeam IMR21700NP-500A 5000mAh battery.
- USB-A to USB-C cable.
- Two spare o-rings.
- Spare USB cover.
- Lanyard.
- User manual.
Torch in use⌗
The Acebeam E75 is a perfect fit for my hand.
The pocket clip nestles in my fingers while the CNC’d metal switch cover sits under my thumb.
I decided to take the Acebeam E75 with me while on holiday with family in Cairns, Australia. We flew with carry-on luggage so I wanted one torch with the right combination of flood and throw for general use.
I even brought the torch along while visiting the Great Barrier Reef.
I used the E75 as a bedside lamp by tailstanding it on a bedside table and by setting it to Moonlight mode. The beam bounced off the ceiling and lit the room up dimly. This was a nice alternative to the bright lights in the hotel room.
I also used the E75 while walking around the beaches and mountains at night with my family.
There is a reversible pocket clip that allows the torch to be carried in a pocket with the head up or the head down. It could also be clipped onto the straps of a backpack for quick access while hiking through a rainforest.
The magnet in the tailcap is very strong. It allows the torch to be used as a work light.
Build quality⌗
The Acebeam E75 is made of aluminium, has a matte anodised finish, and comes in four colours: Black, Gray, Teal and Green.
I like the elegant feel of the diagonal lines on the tube and the vertical lines on the tailcap. There is plenty of grip, especially from cooling fins, and there are no sharp edges.
There is a wide lanyard hole in the side of the tailcap that allows the torch to tailstand while a lanyard is attached.
The torch came with a protective film applied to the lens. I removed the film to reveal a glass lens with an anti-reflective coating.
A CNC’d metal side switch is quiet when clicked and it has a slight tactical feel. Sometimes side switches can feel squishy or too clicky. I think that Acebeam has struck the right balance with this one. It feels firm and has a nice amount of movement.
There are four battery level indicators around the side switch. The indicators are a bit bright on the sample that I received. This could be annoying when using the Moonlight mode.
Acebeam has already listened to feedback and revised the battery level indicators so that they are now dimmer.
The battery level indicator ring reminds me of the one in a WildTrail WT3M but I prefer the design of the one in the E75. The quality looks better in person.
Square-cut threads came well lubricated and the tailcap turns smoothly.
The tailcap is a delight to use. The grip makes it easy to turn the tailcap and the magnet in the tailcap helps pull the battery out.
A spring in the tailcap sits in front of a magnet. There are double springs at the head of the torch to help keep the battery secure.
I like the attention to detail that Acebeam has taken while designing the USB cover for the built-in USB-C charger. The head of the torch has a small cut-out to make it easier to use a thumbnail and index finger to pinch a small tab on the USB cover and pull it out.
The pocket clip is securely attached to the torch with two 1.5 hex screws.
I used a Mitutoyo 500-196-30 Digital Caliper to take measurements. One screw is 5.14mm long while the other is 5.18mm. Both screws bottom out in the holes. There is very small gap between the screw heads and the pocket clip. Despite the gap, that is barely visible, the pocket clip is tightly pressed against the torch and there is no side-to-side play. This could be by design so I won’t file the screws down to see what happens.
The USB cover is attached to the body of the tube with one T5 screw. The screw sits flush with the tube. The pocket clip must be removed first to access the T5 screw.
I like how the pocket clip can be removed and how the USB cover is securely attached. Kudos to Acebeam for throwing in a spare USB cover!
LED, bezel, lens, reflector and beam⌗
The Acebeam E75 comes with four Nichia 519A 5000K emitters. It is also available with four 6500K emitters. Acebeam have not stated who makes the 6500K emitters.
It has a metal bezel, a glass lens with a blue anti-reflective coating, and a smooth reflector.
The bezel is threaded and has a small amount of glue. I was able to break the glue by using a strap wrench. Please don’t attempt this. This may void the warranty.
The bezel was pressing the glass lens down against an o-ring that sits around the edge of the reflector. The reflector can be popped out easily after removing the o-ring.
Each emitter has a centering gasket.
Torch enthusiasts might want to dedome the Nichia 519A emitters. The colour temperature may decrease, the light output may drop, the beam may become rosier and the beam distance may increase slightly when the domes are removed from a Nichia 519A emitter.
Please do not attempt to remove the domes unless you know what you are doing. This may void the warranty and you could damage the torch. The emitters might stop working.
I was a bit concerned about whether removing the domes would create a flowery pattern, as is the case when swapping Samsung LH351D emitters with slightly smaller Luminus SST20 emitters behind a quad TIR optic. However, u/Heady1898 successfully dedomed the Nichia 519A emitters in their Acebeam E75 and posted the results on Reddit. The beam pattern looks ok after the emitters have been dedomed!
CCT, CRI, and duv⌗
I have taken Correlated Colour Temperature (CCT) and Colour Rendering Index (CRI, RA of R1-R8) measurements with the torch positioned one metre away from an Opple Light Master Pro III (G3) for Low, Med and High and two metres away for Turbo.
The CCT is around 4500K. The CRI is around 97.
The Delta u, v is slightly positive (green) on lower modes and it is close to pure white on Turbo.
The beam produced has a circular hot spot and a square spill due to the smooth reflector.
| Mode | CCT (K) | CRI (Ra) | x | y | Duv |
|---|---|---|---|---|---|
| Low | 4465 | 98.1 | 0.3628 | 0.3683 | 0.0016 |
| Med1 | 4469 | 97.9 | 0.3627 | 0.3681 | 0.0015 |
| Med2 | 4525 | 97.8 | 0.3606 | 0.3665 | 0.0015 |
| High | 4577 | 97.4 | 0.3588 | 0.3649 | 0.0014 |
| Turbo | 4637 | 96.4 | 0.3561 | 0.3586 | -0.0007 |
Calculate Duv from CIE 1931 xy coordinates
Dimensions and size comparison⌗
Dimensions⌗
I took the following measurements using a digital caliper.
| Measurement | Unit (mm) |
|---|---|
| Length | 129.66 |
| Head diameter | 35.06 |
| Tube outside diameter | 28.04 |
| Tube inside diameter | 22.02 |
| Tail diameter | 28.05 |
| Button diameter | 11.43 |
| USB port width | 12.97 |
| USB port height | 7.00 |
| USB port depth | 3.42 |
| Battery length | 74.33 |
| Battery diameter | 21.36 |
Weight⌗
I took the following measurements using a digital scale.
| Weight | Unit (g) |
|---|---|
| Torch | 101.0 |
| Battery | 52.82 |
| Torch with battery | 153.82 |
Size comparison with its competition⌗
From left to right: Acebeam E75, Emisar D4SV2 26800, Sofirn IF25A, WildTrail WT3M
From left to right: Acebeam E75, Emisar D4SV2 26800, Sofirn IF25A, WildTrail WT3M
User interface⌗
The Acebeam E75 is controlled by an electronic side-switch.
There are four modes in the main group: Low, Med1, Med2 and High.
And there are shortcuts to Moonlight, Turbo and Strobe.
| State | Action | Result |
|---|---|---|
| Off | Press and hold for 0.5 seconds | Moonlight |
| Off | Click | On (mode memory) |
| Off | Two clicks | Turbo |
| Off | Three clicks | Strobe |
| Off | Press and hold for > 3 seconds | Lock |
| Locked | Press and hold for < 3 seconds | Battery level indicators flash green and red |
| Locked | Press and hold for > 3 seconds | Unlock and enter Moonlight |
| On | Click | Off |
| On | Hold | Cycle (Low, Med1, Med2, High) |
| On | Two clicks | Turbo |
| On | Three clicks | Strobe |
| Turbo | Two clicks | On (mode memory) |
| Strobe | Two clicks | Turbo |
Lock/unlock⌗
Lock and unlock the torch by holding the switch for 3 seconds from off.
The emitters will flash three times and turn off to indicate that the torch is locked.
The emitters will flash three times and enter Moonlight to indicate that the torch is unlocked.
Mode memory⌗
Low, Med1, Med2 and High are memorised.
Moonlight, Turbo and Strobe are not memorised.
Strobe⌗
Strobe has a frequency of 10 Hz.
Battery level indicator⌗
The battery level indicator flashed red lights rapidly when the voltage was low.
| Colour | Battery level |
|---|---|
| Green | Level > 20% |
| Red | 10% ≥ Level ≤ 20% |
| Red flash | Level < 10% |
Low voltage protection⌗
There is low voltage protection. The emitters turned off at 2.70V and the current cuts out.
It is impressive when the driver does what the manufacturer says it does. The user manual states that the torch will turn off when the voltage drops below 2.70V.
I tested low voltage protection by connecting the driver of the torch to a bench power supply and then by lowering the voltage from 4.2V to 0V.
PWM⌗
I did not notice any visible PWM (flickering).
What I like about the UI⌗
- It is simple to use.
What could be improved⌗
- It would be nice if the torch entered Turbo immediately when performing two clicks from off. Currently it goes into the last memorised mode after the first click and then it enters Turbo after the second click.
Batteries and charging⌗
Battery⌗
The included button top Acebeam IMR21700NP-500A 5000mAh 3.7V Li-ion cell arrived with a voltage of 3.57V. It came with a bit of plastic at the end to prevent accidental activation while in transit.
I tried the following cells in the Acebeam E75:
| Cell | Type | Voltage | Top | Compatible? |
|---|---|---|---|---|
| Acebeam 21700 5000mAh | Li-ion | 3.7V | Button | Yes |
| Weltool UB21-50 21700 5000mAh | Li-ion | 3.7V | Button | Yes |
| Samsung 40T 21700 | Li-ion | 3.7V | Flat | Yes |
Charging⌗
Built-in USB-C charging was convenient while travelling. I was able to top up the battery by using a USB-C charging cable that I brought for my phone. It is nice when all of my devices can be charged with one USB-C cable.
Power supply: PinePower Desktop USB-C
USB Meter: AVHzY CT-3
Room temperature: 15 C
I charged the included battery from 2.90V to 4.18V using the built-in charger. It took about 3 hours 30 minutes to fully charge.
The charging rate gradually rose to 5V 1.9A and then dropped off.
The four indicator LEDs went red and blinked while charging. The indicator LEDs turned green when charging was complete.
Power supply compatibility⌗
I tried the following power supplies with the built-in USB-C charger:
| Power supply | USB Type | Protocol | Does it charge? |
|---|---|---|---|
| Apple 61W Power Adapter | USB-C | PD | Yes |
| Google Pixel Power Adapter | USB-C | PD | Yes |
| PinePower Desktop | USB-C | PD | Yes |
| PinePower Desktop | USB-A | QC | Yes |
| PinePower Desktop | USB-A | Yes |
USB-C to USB-C charging works.
Performance⌗
Specifications from the manual:
| FL1 STANDARD | Turbo | High | Med2 | Med 1 | Low | Moonlight | Strobe |
|---|---|---|---|---|---|---|---|
| Output (lumens) | 3,000 + 1,000 + 150 | 1,000 + 150 | 450 | 150 | 30 | 1 | 2,400 + 1,000 |
| Runtime | 1min + 1h 40min + 1h | 1h 45min + 1h | 4h 40min | 16h | 2days 12h | 26days | 15min + 3h |
| Beam Distance (metres) | 210 | 128 | 82 | 58 | 185 | ||
| Beam Intensity (cd) | 11,025 | 4,096 | 1,681 | 841 | 8,556 |
Lumen measurements⌗
Note: Lumen measurements may be off by 10% with my DIY lumen tube.
I used a UNI-T UT210E clamp meter to measure the current at turn on.
| Mode | Amps at start | Specs | Lumens @turn on | Lumens @30 sec | Lumens @10 min |
|---|---|---|---|---|---|
| Low | 0.06 A | 30 | 38 | 37 | 37 |
| Med1 | 0.28 A | 150 | 179 | 176 | 174 |
| Med2 | 0.86 A | 450 | 512 | 506 | 496 |
| High | 2.46 A | 1,000 + 150 | 1,268 | 1,240 | 1,184 |
| Turbo | 11.47 A | 3,000 + 1,000 + 150 | 2,749 | 3,354 | 1,157 |
Moonlight was too low for my DIY lumen tube to detect.
The output took a few seconds to ramp up on Turbo.
Standby drain⌗
110 µA
Runtime graphs⌗
I used my own DIY lumen tube with a TSL2591 sensor and forked bmengineer’s project RuTiTe to record runtimes.
The room temperature was approximately 10 C.
Runtime⌗
Here is a summary of the runtime results:
| Mode | User manual | Runtime | Turn off | Final voltage |
|---|---|---|---|---|
| Turbo | 1min + 1h 40min + 1h | 1h 32min 3s | 4h+ | 2.82 |
| High | 1h 45min + 1h | 3h 13min 39s | 4h+ | 2.85 |
| Med2 | 4h 40min | 5h 43min 12s | 6h+ | 2.85 |
| Med1 | 16h | 16h 16min 54s | 16h 16min 54s | 2.90 |
| Low | 2days 12h | 2days 12h+ | 2days 12h+ | 3.38 |
“Runtime” is the time until the output reduces to 10% of the output at 30 seconds (as per the ANSI/PLATO FL1 2019 Standard).
“Turn off” is the time until my DIY lumen tube no longer detects more than 1 lumen.
“+” indicates that the light remained on after recording had stopped.
Moonlight was too low for my DIY lumen tube to detect.
Turbo turned off shortly after four hours. I was able to use Moonlight and Low modes but the light would not enter Med1, Med2, High or Turbo while the voltage was low.
Turbo maintained over 1,000 lumens for 1h 32min 3s but fell slightly short of the 1h 40min claim. The difference could be due to the colder testing environment at my home.
Overall, the runtime results were mostly better than expected and the sustained output is impressive. I love seeing those flat lines in runtime graphs!
Throw⌗
I took lux measurements with a UNI-T UT383BT at 30 seconds. Low, Med1, Med2, High and Turbo were measured at five metres.
| Mode | Specs (cd) | Specs (m) | Candela measured (cd) | Distance (m) |
|---|---|---|---|---|
| Low | 25 | 10 | ||
| Med1 | 841 | 58 | 550 | 46 |
| Med2 | 1,681 | 82 | 1,775 | 84 |
| High | 4,096 | 128 | 4,525 | 134 |
| Turbo | 11,025 | 210 | 11,900 | 218 |
Beamshots⌗
I went to a local park and aimed the Acebeam E75 at a tree 70 metres away while using Turbo.
Beamshots were taken using a Sony RX100M2 using 3.2", f3.2, ISO 100, 5000K WB.
Acebeam E75 (Turbo)⌗
Olight Baton 3 Pro Max (Turbo)⌗
NEXTORCH TA30C MAX (High)⌗
Cyansky P25 V2.0 (Turbo)⌗
Conclusion⌗
The Acebeam E75 is a great 21700 sized torch for general use. It has a really nice beam!
The Nichia 519A 5000K emitters produce warm beam with a colour temperature closer to 4500K and they have a high CRI. A cool white, 6500K, option is also available.
The build quality is excellent, the user interface is simple, and look at those runtimes! The driver is efficient and has great output regulation.
Battery level indicators are a bit bright but Acebeam has already fixed this on newer batches of the E75.
This is the type of torch that I am comfortable giving to family and friends. It is a complete kit.
Pros:⌗
- Excellent build quality.
- Warm colour temperature (4500K).
- High CRI.
- Great runtimes and output regulation.
- Well balanced beam (flood and throw).
- Built-in USB-C charging.
- Strong magnet.
- Reversible and removable pocket clip.
Cons:⌗
- Battery level indicators are bright (fixed).
Price⌗
The Acebeam E75 is AU$149.95 from liteshop.com.au and acebeam.com.au at the time of writing.
Did you know that acebeam.com.au exists?!
Product page⌗
Promo code: SG9IP8YKT5PI
liteshop.com.au affiliate link
I may earn a commission if you use an affiliate link or a promo code. This will help fund future torch reviews and tutorials.