Nitecore Thumb Leo flashlight review

The Nitecore Thumb Leo flashlight released in 2017. It uses 1 x unspecified LED, 1 x unspecified 365nm UV LED, no reflector and integrated Li-Ion battery. The powerful emitter in this flashlight provides up to 45 lm output, 150 cd intensity, and a beam distance of 24 m.

Table of Contents

• Nitecore Thumb Leo specifications
  • Body, materials, weight, colors
  • System, LED, lens, reflector
  • Performance, flux, intensity, throw
  • Software, user interface, modes
  • Features, battery, protections
  • Accessories, package contents
• Conclusion, pros and cons
• Photos

The content of this article reflects our own experiences and viewpoints. We aim to offer insights on a topic, and we hope others find it helpful and motivating. Additionally, we make every effort to provide accurate and comprehensive coverage. If you found an error or something lacking in the specifications for the Nitecore Thumb Leo, then tell us.

The Thumb Leo is an impressive flashlight that offers both power and reliability. Its robust build and outstanding illumination make it a versatile lighting instrument. This light has 3 modes of lighting. Without mode memory, this flashlight always starts in the default mode. This USB rechargeable flashlight is small and light. It is easy to carry.

Nitecore Thumb Leo specifications

A flashlight provides reassurance and confidence. It is helpful in unfamiliar or dangerous places.

Body, materials, weight, colors

The 25 g flashlight may not provide the same level of brightness or features as larger models. The length of a flashlight can affect how it feels in your hand and how you can grip and maneuver it. This flashlight features a captivating black color.

System, LED, lens, reflector

The color temperature choice depends on the light's use and personal taste. Some flashlights with electronic switches have programmable features. They allow users to customize the behavior of the flashlight.

Performance, flux, intensity, throw

You mainly need a flashlight for basic tasks like finding keys or navigating in dimly lit areas. 45 lm can be enough. It can also be enough for occasional use around the house. 150 cd can make things quite bright. It's enough for many everyday tasks. The throw distance is the farthest distance the flashlight can light an object. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam.

Software, user interface, modes

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences. The Thumb Leo's SOS mode produces a specific sequence of long and short flashes. It signals distress or emergency.

Features, battery, protections

The Thumb Leo flashlight utilizes integrated Li-Ion battery as its power source. The battery indicator helps users check the battery status. It also estimates how much runtime they have left before recharging the battery. The built-in charger allows for convenient and versatile charging. You can use various USB power sources to recharge the battery. The Thumb Leo flashlight lacks built-in LVP. You should use a protected battery to prevent over-discharging.

Flashlights without thermal protection may be more susceptible to overheating under extreme conditions. The flashlight has an IPx8 rating. It can withstand being submerged in water beyond 1 meter for a prolonged period. The manufacturer specifies this. A flashlight's impact resistance can vary. It depends on its design, construction, and intended use. Extra LEDs have different colors or modes, they can help with specific tasks. Thumb Leo's UV light can reveal urine and other stains left by pets. It works on carpets, furniture, and other surfaces.

Accessories, package contents

According to the ANSI/NEMA FL1 Standard, we measure the performance of the Thumb Leo flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

Photos

If there’s information about the Nitecore Thumb Leo that you would like to see on this site, then write to us.

by David Hagon

I love bushcraft and flashlights. I find joy in mastering wilderness survival skills and exploring the realm of illuminating gadgets. Bushcraft isn't just fun, it's a learning journey. I form a strong bond with nature. It's more than a hobby, it enriches me in practical and spiritual ways.