Nitecore T4K Rechargeable Torch 4000 Lumen Turbo Super Bright Small Flashlight, Protective Case Included

Product Information

Another information on the display is that of the 4000 lumens TURBO mode (lasting about 10 seconds). Let's see the sequence: With the torch both off and on, press and hold the MODE button to access the TURBO level; release the button to switch off or to return to the previous light level set. At 3.4V, the buttons will light up blue once every two seconds – I feel this is quite high, and 3.1 or 3V would be perfectly fine.

The T1S uses a Luminus SST-40 LED behind a TIR lens and has pretty good throw for a tiny torch with a noticeable hotspot – around 184 metres or 8460 candela in turbo mode. The provided keychain clasp is of a fairly decent quality to be able to support the full weight of the light and should hold up to the test of time. Given that Turbo only works for 10 seconds, I won’t be stressing the light by hitting turbo over and over again; it doesn’t really result in much, as the light gets heat-soaked, and turbo lasts for shorter and shorter periods until it lasts for less than 1 second. I’ve run High and Mid, though, as I believe these will be the most commonly used modes for longer periods of time. There are tint shifts throughout the beam profile. The hotspot is cool white whilst the corona possess a slight yellowish-green tint; and most of the spill having a slight yellowish-green tint.Mode spacing appears to be progressively brighter to the eye and the modes are well spaced enough to be able to know which mode one is currently in. With that in mind, TLR tend to view mode spacing as battery life indicators (amount of runtime left) rather than the specific output (lumens). In turbo I measured 1785 lumens at turn on, 1744 lumens after 10 seconds, 1673 lumens after 30 seconds and it dropped sharply to 520 lumens after 80 seconds. It held this constantly for the remainder of the test.

And the magnetic tail cap, mostly intended for snapping to the charger, is also just about strong enough to hold the torch in any orientation for hands free operation.HOLD (MODE) [~1 sec] – Direct access to MOMENTARY TURBO, releasing switch will return to previous mode. The Acebeam E70 Mini comes with a short USB-C to USB-A cable, a lanyard, spare o-rings and a user manual. The flashlight is sealed and tightened down with 8 screws from factory – disassembly is not recommended. Equipped with a high capacity built-in battery, the T4K offers a runtime of up to 67 hours in its lowest brightness setting. This ensures long-lasting illumination without the need for frequent recharging. The torch also includes a power indicator, allowing users to easily monitor the battery level. Switching ON and OFF is done by the electronic switches on the side of the flashlight. There is momentary activation (MOMENTARY TURBO) using the MODE switch. Normal Operation