Acebeam EC50 Gen II 5000K review with measurements (XHP70, 26650)

What do you have in mind? :smiley:

Thanks for Your review, I rally appreciate Your job.

A question arises : what’s the CCT of the 6000K version of EC50 gen II? :smiling_imp: if is around 5500K too, I will chose that version!

As an update, here’s the behavior of the thermal regulation in the EC50 II. I repeatedly switch a cooling fan off and on while the light was running on the highest turbo mode.

After the thermal stepdown happens, cooling doesn’t recover the former output, you have to switch the light off an on. Thermal protection kicks in when the light reaches ~70°C measured from the surface of the hottest point in the head.

The manufacturer’s specification on 5 hours on medium mode seems to match my runtime test.

Dude, this might be the most thorough review I have ever seen! Unbelievable amount of detail you put in this! If manufacturers are giving lights away for free to reviewers, you definitely deserve the same treatment! lol
On to the light, this light seems to stand above the rest (R50,TM03,Klarus G20) in it’s class! While their lumens/runtime claims aren’t quite 100% accurate, the actual graph is still VERY impressive! It might be because I’ve been in the flashlight game for so long, but it was only 10 years ago that our only handheld 500 lumen option was the Surefire M6, which used 6 NON RECHARGEABLE CR123 batteries and gave us 500 lumens for a whopping 20 minutes! LOL!!! Seems almost unimagineable that now we have a much smaller light that gives the same output for 15x as long, and you never have to buy batteries for! Alright… I’m done ranting lol
I really wish we could get a groupbuy for this light! Who’s in???

I’m in……

Forgot to measure the standby current, but it’s 106.5 microamps. So for a 5000mAh battery, five years and a bit.

Fantastic review! I am working on a review for the EC50 II as well. Compared to my R50, I prefer the EC50 II hands down. A fantastic light. I have a G20 on the way as well so I’ll do comparisons of the three together as well. I love your thermal videos and runtime & tint data! Again, great review!

Thanks for the review.

Thanks Maukka, I like great turbo runtimes and g30 seems good in this by your graphs. Whats the enviroment temperature when you did that test?

Hi maukka, can this light safely accommodate high drain 26650 to attain that 3000 lumens manufacturer rating?

Here’s the beam angle vs. intensity graph on a logarithmic y-axis, which makes it way easier to compare the spill. Thanks to parametrek for the suggestion.

I have a high drain Vappower on order and will update when it arrives.

On your excellent screen shots of the different lights you list the Convoy L6 shots were taken at ‘3 amps’; was that the highest out put or at the next lower output?

Thank you. :slight_smile:

3A is the emitter tint, not current.

Thank you for correcting my clumsy reading. :slight_smile:

The theory that a higher drain cell will allow the EC50 Gen II to remain longer on Turbo is reinforced after testing the light with a Vappower 26650 4200mAh battery. According to HKJ’s tests this is one of the best high drain batteries in 26650 size.

I just received my Acebeam EC50 II, and I notice that the Turbo mode only works with an almost fresh-off-the-charger battery (using the supplied Acebeam 26650).

I’ve used turbo just a few seconds at a time, over a few days, but by the 3rd or 4th day I wasn’t able to get turbo mode anymore (it’s identical to high mode). I haven’t timed it, but I would guess that the total time using turbo over those 3 or 4 days was less than 3 minutes.

Have others experienced the same?

I’m looking into buying one of those Vappower cells that maukka tested. The EC50 II is a very good light even with a max. output of 1500 lm, but I bought it for the close-to-3000 lumens.

Can anyone recommend other cells that would perform comparably to the Vappower?

A few other minor things that I don’t love about this light:

  • the rubber usb port cover comes off too easily.
  • when you activate and deactivate electronic lockout, the light flashes 3 times. But it flashes at a higher output level than is necessary, and it flashes way too slowly. It should flash at the lowest level, and all 3 flashes should take about half a second total.
  • as others have mentioned, I wish you could change the output level by a press-and-hold when in turbo mode.

Use tail cap lockout. A very slight twist of the cap disconnects it completely.

You’re right, that works better, thanks.

Somebody how can I replace the usb rubber cap?