Acebeam E75 - Quad Nichia 519A goodness!

I don’t think so. I’m getting mine in the CW because I got a great deal on it and the store were out of the CRI version. All they could tell me is that it’s a ‘TN’ led. I don’t know if that’s bad or good or what that even is. It is curious that even Acebeam won’t relay the information on that LED either.

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I used a UNI-T UT210E clamp meter to measure the current at turn on. An 8awg cable was used to bypass the tailcap.

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

Could you post a picture of your test setup? I’m still quite new to this and I’m not sure how to use a cable to bypass the tailcap.


I bought a metre of 8awg cable from an automotive store, cut a short length off, stripped the ends, added some solder, and added some heatshrink. It’s probably not making the best connection. There may be more resistance.

I turn the clamp meter on, thread the cable through, select 2A or 20A, press the blue button to switch to DC, hold each end of the wire against the tube and battery, press the zero button, turn the torch on, write the measurement down.

Some care is required to avoid shorting the tube and zapping your fingers. Sparks can go flying.

I used a biscuit tin in the photo to avoid burning a hole in something.

thanks!

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Mine throttles down around 52 °C. The picture was taken a few seconds after that.

The turbo stepdown yes, but after that it looks like it doesn’t step down from high even if it becomes extremely hot. It would be interesting to test if there is any themal shutdown at all.

Hm, if I’m not completely mistaken, mine went down to 37 Celsius and stayed there on the high level. Will redo the experiment when I am back home.

The light was standing on an air filter running at very low volume flow, just to simulate cooling by just holding it. This usually gives consistent results.

Gotta say, my basic default setting with lights and knives is aesthetics. This looks lovely, especially in that dark green/blue the reviewers are being given.

The E75 has LEDs in series (i think) so the current to each LED is reduces by at least half from if they were in parallel. My TS25 is pulling near 23 amps on Turbo. I think i measured like 10.4 amps on turbo for the E75.

The current from the battery won’t change, no matter how the LEDs are connected (given a constant power), would it? I might be wrong, so please explain.

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I measured max of 52 C before the throttle on Turbo. It maintwined around 47 C after the stepdown. By abiut 20 minutes the light was hot, but not uncomfortable to hold.

I have the gray one and really like it, but I’m maybe a bit partial. I prefer the tan/sand tones

Yep, I’m getting ~10.8A on turbo using a clamp meter, which seemed about right.

Nice review, and nice photos. I have 4 Acebeam lights, and agree with your assessment that their lights are of a high quality. Acebeam and Fenix are 2 of my favorite brands, and like you said, with many of the more inexpensive lights, even though they may be a good light and good bang for the buck, there are often corners cut somewhere.

I also agree about the Acebeam UI. The ones I have are like the one on this model, and are very easily usable once you get used to them.

My main issue with the E75 is the rubber plugged charge port. I just don’t feel comfortable with them, and it seems like they would be the first thing to wear out and fail. It seems that more manufacturers are now going to some kind of a screw cover with o-rings. I usually charge my batteries in a stand alone charger anyway, and don’t mind if there is no charge port at all, but I know that lots of folks want them. It just seems like a weak link for water or dirt, especially with the plug. Many plugs seem connected with a very thin string of rubber which seems like it could be easily torn, or they have a tab which can get caught on a pocket, etc.

All in all though, seems like a nice light, and again, nice write-up.

I managed to get the teal Nichia’s version from an online shop in Chine for about US$35 including shipping to Malaysia (at today’s exchange rate) and it comes packaged with 2 Acebeam silicone traffic cones as well.
Considering the retail price of this light is US$99, I have no idea how the shop manage to sell the light for about 1/3 of the RRP.

The silicone cones are the same as those shipped with Acebeam P17 which I ordered directly from Acebeam China

Link?

The online shopping platform are only for shoppers living in East Asian countries.
https://shopee.com.my/Perfect-Flashlight-Acebeam-E75-6500K-5000K-i.1032969595.23948693848?xptdk=ce26c34d-f128-4ba7-a215-2974a601eb2d

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And you actually got one?

I find this interesting, as I had to pay more even after subtracting a reviewers discount.

Yes.
I got mine about 1 week after placing the order.
Came in Acebeam outer brown box, where inside are the 2 silicone diffusers and the black box containing the E75

It’s a legit online shopping platform, kinda like AliExpress, and the platform will only release the payment to the seller after the buyer has confirmed that the order has been received and is as described