Acebeam X70 - 40000 lm - 8*18650 - Active fan cooling

I am most certain that my driver/light is improved and tweaked from that first link you provided. That was 9 months ago and was for the Prototype, not the ones that he sold.

The second link is obviously for the BLF-GTvn and NOT my light.

In regards to the run times I am able to achieve. There is one thing that you guys have not considered! Simply because you would have no way of knowing!

That is the fact that I have LEATHER hands!

This is for Summertime use. The average Joe would be turning this light down in 3 or 4 minutes. Your average flashaholic may run it for 5 to 7 minutes. Then there is me with my 5 years of experience with V54 lights and being a turbo freak who can run it up to 15 minutes on turbo, sometimes switching hands along with a few other secrets! :smiley:

The reason I thought it would only last for 3 minutes was due to it drawing 70 watts. That’s enough for even a fairly big light to get pretty hot. In stock form it only draws maybe 25W.

Can’t you rack off to the other forum if all you’re gonna do here is gloat about the overpriced V54 lights you’ve purchased? Talk about your V54 lights with people that care.

thats weird, if the light is gonna produce more then 40k since rumors say boosted to 53k, how come the distance gets shorter? that makes no sense to me… good about the price drop tho…

They still say built in fan-cooling system so they havent ditched it then i guess?

Where did you hear this? Are you maybe confusing it with the Imalent MS12 which is rated at 53,000 lumen? The MS12 is using 20700 cells to get the extra output. The X70 is still using 18650 cells so I don’t see how it can just gain another 13,000 lumen. I’d say that’s a false rumor.

My X80 broke in 2 weeks, my X45vn was DOA, all my Imalents are still 100%.

A big poll on Facebook had Olight and Acebeam with far more failures than Imalent (Olight having far more than Acebeam). Which is surprising as Imalent mainly deal in budget priced mould breaking powerhouses.

Fair enough Olight probably out sell their competition considerably, but there wasn’t many Thrunite/Nitecore failures reported either and they have to be up there for sales.

someone wrote here IIRC that its gonna get boosted… but who knows… if not then imalent is the lumen kings for now if that light can deliver :wink:

I can’t help thinking ThruNite are gonna launch an attack on the throw and flood records, it seems a long time since the TN36 and TN42 ruled the roost.

I do it because I can and its entertaining to see how it irritates you so much! :wink:

V54 lights smoke and Vinh doesn’t give a toss about his customers hence always telling them to stay on topic.

There’s no need for this.

You also might get some rude points since it does seem like a pretty rude thing to say.

And we’re up to 60k lumens.

damn…. thats impressive… crazy how is that even possible with 8*18650 Battery(Sony VTC6) ?? i thought that much lumens needs better batteries… JasonWW what u say ?

20A discharge rate per cell at 100LM/W

Don’t you think it was pretty rude in the first place to have multiple offtopic posts in here?

Holy cow from 40k to 60k! I wonder if they are just bumping up numbers on paper after Imalent’s announcement of the MS12. That would ruin Acebeam’s reputation if it doesn’t deliver close to 60k as so many people have TA Lumen Tubes now to confirm those numbers :smiley:

No, off topic conversations are normal here, plus they were friendly. Telling someone to get off the forum is not friendly.

Well there is no way it could sustain 60,000 lumen. That is for sure. 40,000 lumen was borderline sustainable.

Here are my old calculations from my thread on actively cooled lights:

How the heck did I come up with 3.5A per emitter? I don’t have to look at a chart to know that doesn’t sound right. It should be closer to 4.5A.

Anyway, let me plug in 60k lumen to the formula.

60,000 ÷ 12 = 5,000 lumen per emitter. That’s roughly 8A per emitter (conservatively). 96 amps at the 6 volt level or 48 amps at 12 volt level.

48 amps at 13 to 14 actual volts would be 624-672 watts!.

As far as the batteries, it’s using 8 x 18650. If the cells were 4S2P (like the Imalent DX80) that would require at least 24A per cell!. The Sony VTC6 can not handle that amperage and temperature long term due to internal battery temps exceeding 80°C. They could do 24A each for short periods, though.

So my guess is that the X70 could do 60,000 very briefly. Maybe a couple minutes. We are talking very brief extreme turbo.

If we look at the Acebeam X80-GT it does a rated 32,000 lumen using 18 x 50.2 emitters. It only uses 4 cells at 18.6A@12v for about 260W and can sustain that for about 25 seconds. This is using 20A protected Acebeam batteries.

So the X70 would be working each battery even harder. 24A each, whew!

I wonder how this can ever work out. Even submerged in water this should be WAY too much heat generated even for 15 seconds. But I’m sure someone here can do the math.
Just think about the gigantic cpu coolers with triple 140mm fans you have nowadays to keep temperatures below 80°C and they just generate a quarter of the power.