Flat flashlights took over everyday carry because they ride in a pocket like a phone instead of rolling around like a tube, and the EDC23 is where Nitecore has pushed the shape: 4.05 inches long, 3.56 ounces, and still good for 2,500 lumens with a 280-meter throw. It’s the shortest flat light Nitecore has built.
The spec sheet alone wouldn’t separate it from the crowd, though the OLED screen does. Instead of guessing at battery life from a blinking indicator, you get the brightness level, the lumen output, the voltage and the runtime left, all on the face of the light. The trade for all of it’s a battery that’s sealed inside.
Price: $74.95
Where to buy: Amazon
The shortest flat body in the Nitecore lineup
At 102.8mm long with a 33mm head and a body about 13.5mm thick, the EDC23 is the shortest model in Nitecore’s flat EDC line, and at 101g it’s light enough to forget in a pocket until it’s needed. The flat profile is the point: it sits against the leg instead of printing through it, and it shares space with a phone without a fight.
Nitecore builds the body from stainless steel front and rear shells with a PVD titanium coating, wrapped around a carbon fiber reinforced polymer frame with an aluminum heat dissipation plate underneath. It’s overbuilt for a light this small, which is exactly what you want from something that lives at the bottom of a pocket or a bag.
Five levels from 15 to 2,500 lumens
Two UHi 25 LEDs sit behind orange-peel reflectors, so the beam mixes a wide working spread with real reach: 20,720 candela and 280 meters on Turbo. The ladder under it’s spaced for actual use, with 1,100 lumens for an hour and a half, 200 lumens for 3 hours 45, 65 lumens for 11 hours, and a 15-lumen Ultralow that runs 39 hours.
The UHi 25 emitters are high-density LEDs with a 2.26 square millimeter emitting surface, and they run at 6,500K cool white with tight color tolerance, so the beam stays clean instead of shifting green or purple at the edges. An ATR module watches the temperature and steps the output down before the light gets uncomfortable, and the strobe runs the full 2,500 lumens on randomly changing frequencies. Turbo is a burst tool here, not a cruising gear.
Every small bright light pays for output in heat, and Nitecore handles it with a semi-embedded aluminum plate that runs almost from the head to the tail under the shell. The plate pulls heat off the LEDs and spreads it along the body, which is how the light can hold its 1,100-lumen High without turning into a hand warmer.
The OLED screen and dual tail buttons
The multifunctional OLED display shows the brightness level, the lumen output, the battery voltage, the remaining runtime and the power left, plus the lockout status when it’s set. On a light with five levels and a sealed battery, that readout replaces the two guesses flat-light owners make most: how bright am I, and how long have I got.

Control runs through two two-stage tail buttons. The power button half-presses through the levels, holds for a momentary Ultralow, and full-presses on and off, while the mode button half-presses straight to Turbo and full-presses into the strobe. A level preset lets you set the brightness before you switch on, so the light opens where you left it instead of surprising you.

Rapid Lock keeps it dead in your pocket
A flat light that turns itself on in a pocket is worse than no light, so the EDC23 gets Nitecore’s Rapid Lock slide switch. Semi Lockout kills the power button but leaves the mode button live for direct Turbo and strobe access, and Full Lockout shuts both buttons down for storage and travel. It’s a mechanical answer to a real carry problem, and it takes one slide.

It carries an IP54 rating against dust and splashes and impact resistance to 2 meters. That’s rain and drops covered. It isn’t a dive light, and it doesn’t pretend to be.
The sealed battery is the bargain you make
Everything above runs off a built-in 1,500mAh lithium-ion pack, and it never comes out. USB-C charging fills it in about an hour and a half, and an Advanced Power Cut-Off circuit keeps standby drain low enough that the light is ready after sitting. When the pack eventually wears out, though, the light is done in a way a cell-swapping light isn’t.

Against Nitecore’s own line, the EDC23 is the value end of the screen-equipped flat lights: the EDC37 in our EDC flashlight guide costs $139.95 and bursts to 8,000 lumens from a bigger body, and the EDC17 at $94.95 adds a UV light and a laser. The EDC23 skips the extras and the burst numbers, keeps the screen, the lock and the 280-meter throw, and lands at $74.95. For a pocket-first light, that’s the right set of things to keep.
Price: $74.95
Where to buy: Amazon
If your carry starts with a phone-shaped pocket and ends with a light you’ll forget is there, the EDC23 is the one to beat at this price. Just buy it knowing the battery is part of the body, not a consumable.