Acebeam L19 vs Nitecore P30i

Buy the Nitecore P30i unless you specifically need the last 300 meters, in which case buy the Acebeam L19. The Acebeam publishes a longer throw - 1,300 m against 1,000 m - and nothing else to support it. Nitecore publishes 1,000 m and the 250,000 candela that reconciles with it exactly, plus a maximum runtime, a weight, a head size and IP68. Both are specialist tools that are close to useless inside ten meters.

We have not handled either light. We own none of the products on this site and have no laboratory, so there is no verdict here on how either beam looks. Everything below is read from each maker's own product page on October 17, 2026, plus the arithmetic ANSI FL 1 allows - see our methodology.

Both sheets, side by side

Twelve rows where both makers answer, and two where only one does. Nitecore publishes the candela and a runtime; Acebeam publishes neither. Everything else on this page follows from those two absences.

The number that can be checked, and the number that cannot

Under ANSI FL 1, beam distance is defined as the point where illuminance falls to 0.25 lux - roughly full moonlight. Because illuminance is candela divided by distance squared, that definition fixes an exact relationship between the two figures, and a maker who publishes both is offering you a way to check their work.

So the honest summary of the headline is: Nitecore states that its light makes 250,000 candela and backs it with a second, consistent figure. Acebeam states a distance that would require 422,500 candela and does not state the candela. We are not calling the Acebeam claim false; we have no laboratory and no basis for that. We are saying one of these two numbers is checkable and the other is not, and on a site that ranks lights by what can be verified, that is the ranking.

The aperture argument, which cuts against the bigger claim

There is a second reason to be careful with the 1,300 m figure, and it is physical rather than editorial. Throw comes from reflector area and depth and from how small the emitter die is - that is the whole of it. Both makers now publish their head diameters, and the numbers run the wrong way for the Acebeam.

The Acebeam is asked to produce 69 percent more beam intensity from a smaller aperture and less total output. That is not impossible - a different emitter, a deeper reflector or a tighter die will all move the figure - but it is the kind of claim a candela measurement would settle in one line, and Acebeam does not provide one. We note the tension and leave it there. Throw versus flood sets out the optics, and best flashlight throwers ranks the whole category on this figure.

Runtime: one thin figure against none

Neither maker publishes a per-mode runtime table, which on lights driven this hard is the most important gap on both sheets. Nitecore publishes a single 100-hour maximum, and that belongs to the lowest of its five levels - it tells you nothing about the 2,000-lumen mode you bought the light for. Acebeam publishes nothing at all.

Both lights accept CR123A or RCR123 primaries as a fallback, which is worth more on a thrower than it sounds - a search light is used away from sockets by definition. Energizer rates CR123A for storage and operation from -40 C to 60 C, and that is the chemistry argument the car emergency kit page is built on.

What a kilometer of rated distance actually gets you

Neither of these numbers is a working range, and buying on them without understanding that is the commonest disappointment in this category. ANSI FL 1 sets beam distance where illuminance falls to 0.25 lux, which is roughly the light of a full moon. At that level you can detect that something is there. You cannot tell what it is.

Identification needs several times that illuminance, which means the practical identification range of either light is a fraction of its rated figure - we put it at roughly half on our throwers page, and that is reasoning from the inverse-square law rather than a measurement of ours. Applied here, the honest comparison is not 1,300 m against 1,000 m. It is something closer to 650 against 500, and at that point the 300-meter gap in the headline is a 150-meter gap in use.

That matters because it changes what the extra money buys. If your job is spotting livestock across a valley or checking a far fence line, both of these lights do it and the Acebeam does it slightly further out. If your job is identifying a person or an animal at distance, neither light's headline figure is the number to plan with.

What they have in common, and why it matters

Both publish IP68. Acebeam states 2 m for 30 minutes, Nitecore states 2 m. Under IEC 60529 that is dust tight plus immersion to a stated depth, and it is a genuine point in both makers' favor - Olight publishes no rating at all for the Warrior X 4, the next light along in this category.

Both are big. 60 mm and 65 mm of head diameter do not clip to a waistband, and 196 g and 255.5 g are not pocket weights - note that Acebeam's figure excludes the cell and Nitecore's includes it, so the real gap is smaller than it looks. The honest way to own either is as a second light, which is the argument made in full on compact thrower flashlights.

Both have almost no spill. At 125 and 256 candela per lumen these are bright circles in black fields. Inside ten meters that is worse than a 200-lumen pocket light, and neither company pretends otherwise.

Which to buy

Buy the Nitecore P30i for long-range searching. Best for anyone who wants a verifiable thrower: 2,000 lumens, a published 250,000 candela that agrees with its published 1,000 m, IP68, a 1 m impact rating, 255.5 g, a 65 mm head, an 18.5 Wh cell in the box and CR123 as a fallback. Its honest downsides are one runtime figure for five levels, a beam with no usable spill, and a head that makes it awkward to carry. The full review goes through the sheet.

Buy the Acebeam L19 if you need the absolute maximum reach and accept a thinner sheet. Best for anyone whose job is identifying something at the far end of a field: a published 1,300 m, IP68 with a 1.5 m drop rating, 196 g before the cell, a 60 mm head, and a 21700 included with 18650 and CR123A both accepted. Its honest downsides are no published candela to support the headline, no runtime at any level, and a 20-amp cell requirement that a generic replacement will not meet.

If neither is quite right: the Streamlight ProTac HL-X publishes 35,000 candela, 374 m and a runtime for every mode on two power sources, and is a light you can actually carry - it is the answer for anyone who wants reach as one property among several rather than as the only one. Nitecore vs Streamlight sets out that brand-level trade.