Nitecore’s new TUP2 is not just another keychain flashlight — it packs serious tech and lighting muscle into an ultra-compact form. With a maximum output of 1,200 lumens, flexible color temperature control, and a real-time OLED display, the TUP2 aims to be the ultimate everyday carry (EDC) assistant.

Though it’s small in size, its capabilities rival full-size flashlights, making it a compelling choice for those wanting serious performance in a palm-sized unit.

Design & Build: Tiny but Tough

At just 70 mm × 27 mm × 30 mm (2.76″ × 1.06″ × 1.18″) and weighing only 58 g (2.05 oz), the TUP2 is remarkably compact and lightweight. Despite its small footprint, Nitecore hasn’t skimped on build quality.  The body is CNC machined and designed for everyday rough use.  Although the official spec sheet doesn’t explicitly list an IP rating or drop spec, Nitecore’s product line and reputation suggest reasonable durability consistent with EDC standards. One of the standout features is the OLED real-time display, which shows output level, battery status, runtime, temperature, and more — all at a glance.

Lighting & Output: Bright, Tunable, Versatile, 1.200 Lumens Max & 125 m Range

The TUP2’s main white light can deliver up to 1,200 lumens, offering a respectable beam that reaches as far as 125 meters.  The beam intensity is rated at 3,900 candela. These performance numbers are impressive for a keychain-sized light — many mini flashlights top out lower or compromise on throw.

MCT (Multiple Color Temperature) LEDs
The TUP2 is equipped with four quad-core MCT UHE LEDs, enabling flexible switching among color temperatures. You can shift between a cooler white and warmer tones to suit your environment or preferences. Having multiple white color temperatures is especially handy: cooler whites for illumination tasks, warmer light for reduced eye strain in close-in use, or for preserving night vision.

Runtime & Efficiency
On lower modes, the TUP2 can operate for up to 190 hours continuously. That endurance is remarkable given its size. The built-in power management ensures efficient use of battery capacity. Of course, on maximum output the runtime is much shorter, but the unit’s flexibility allows users to scale brightness to the situation.

Power & Charging
Powering the TUP2 is a built-in 1,300 mAh Li-ion battery, so there’s no need for external cells.  It supports recharge via USB, making top-ups simple and convenient on the go. The rechargeable internal battery eliminates hassles of swapping cells, especially in a tiny device. The OLED display also aids battery awareness, so you always know exactly how much juice remains.

User Interface & Controls
The TUP2 keeps its UI intuitive despite packing advanced features. Switching between modes and color temperatures is handled via simple button inputs, with feedback shown on the OLED display.  The display gives you real-time readouts of output mode, voltage level, remaining runtime, and even temperature. This transparency is a huge advantage for users who want precise control and monitoring.

Applications & Use Cases
Because of its size and functionality, the TUP2 is ideal for:
Daily carry (EDC): clipped to keys, in a pocket or bag, always ready.
Indoor tasks: as a handy close-range light, with adjustable color temperature to reduce glare or fatigue.
Outdoor/urban navigation: enough output and throw to help in dim paths, alleyways, or stairs.
Emergency / escape lighting: lightweight but capable enough to serve in power outages or evacuations.
Gadget lovers & gear enthusiasts: fantastic for anyone who appreciates advanced tech in compact form.

Strengths & Considerations
✅ Strengths
Outstanding performance for size: 1,200 lumens and 125 m throw in a mini keychain form.
Color temperature flexibility: gives the user more control than many fixed-white alternatives.
OLED display: real-time feedback on battery, mode, runtime, and temp.
Solid runtime on lower modes: 190 hours is no small feat in such a compact device.
Built-in rechargeable battery: no need to carry spare cells or worry about disposable batteries.

⚠️ Considerations
Runtime on high modes: as with all compact lights, maximum output will drain battery quickly — not designed for extended high-output sessions.
Cooling & thermal throttling: At high outputs, heat is a challenge; although not explicitly detailed in the spec sheet, users may expect output reduction under thermal stress.
Durability details unclear: while build quality is likely strong, the spec sheet does not state IP rating or drop resistance.
No removable battery: some users prefer being able to swap cells in the field.

TUP2 – Key Features (Summary)

> Max output: 1,200 lumens 
> Beam distance: 125 meters 
> Beam intensity: 3,900 cd 
Runtime: up to 190 hours 
> LEDs: Quad-core MCT UHE LEDs 
> Battery: Built-in 1,300 mAh Li-ion 
> Dimensions: 70 × 27 × 30 mm 
> Weight: 58 g
> Display: OLED real-time mode / battery / runtime / temp readout 
> Use: EDC, outdoor, emergency, compact tasks

Conclusion

The Nitecore TUP2 stands out as a miniature flashlight that refuses to compromise. It blends advanced features — multiple color temperatures, real-time OLED monitoring, efficient battery use — with strong output and throw, all in a tiny package.

For anyone tired of trade-offs between compact size and robust performance, the TUP2 is a compelling pick. It may not replace a high-end search light for demanding tasks, but for daily use, emergencies, or as a backup, it’s among the most versatile keychain lights available.