the loaned me the Acebeam X80 for a couple of weeks so I could run some tests on it. Took some beamshots too, but this is not a full review.
Basic specs:
25000 lumens max output
4x18650 batteries
12x CREE XHP50.2
2x CREE XPE2-R2 630nm
2x CREE XPE2-B4 475nm
2x CREE XPE2-G3 530nm
1x Nichia 233A 365nm
BLF Q8, Acebeam K30, Acebeam X80. The X80 is a small soda can sized light.
Noctigon Meteor M43, Acebeam X80, Astrolux MF01, BLF Q8
Do not block!
The four 18650 batteries are in series.
Battery carrier springs are very short. The bundled batteries barely fit and are difficult to remove without damaging the wrapper on the positive end. The ones that come with the X45 have too proud a button and donāt fit. Short unprotected ones are too loose. So itās almost as if Acebeam made the battery carrier compatible only with their own protected batteries with high discharge current. Basically, you could classify it as a proprietary battery pack that is only guraranteed to work with the protected Acebeams.
It doesnāt matter which way you put the carrier in the light. Center is always positive.
Beamshots
Tint and color rendering
Tint in different brightness modes. Some green on the lower modes but overall I was happily surprised with the clean cool white tint.
Tint shift throughout the beam. Not bad at all!
Hereās how the colored Cree XPE2 emitters fall on the CIE chart. SRGB triangle as a reference.
Spectrum
Output
The X80 is the most efficient flashlights Iāve tested so far at 400-800 lumen level. It chugs on at regulated output for over 8 hours with a barely warm surface temperature of 40Ā°C.
PWM
Thereās some flickering evident on all modes, but itās very high frequency and not visible.
Scope screenshots of most modes, zero output line marked by 2> on the left.