![Nitecore](/i/b/nitecore.webp)
Nitecore Thumb Leo flashlight review
The Nitecore Thumb Leo flashlight was 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.
Interested to see if this Nitecore flashlight is a hit? Find out soon!
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
- Links
- Conclusion, pros and cons
- Photos
- Comparisons
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.
![Nitecore Thumb Leo / THUMBLEO](/p/6/642/nitecore-thumb-leo-thumbleo-0.webp)
The Thumb Leo flashlight is an essential tools for emergency preparedness. 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.
Nitecore Thumb Leo specifications
Brand | Nitecore |
---|---|
Name | Thumb Leo |
Type | THUMBLEO |
Rating | |
Launch | 2017 |
Form | flashlight |
This Nitecore flashlight offers portability, versatility, and reliability.
![Nitecore Thumb Leo / 2](/p/6/642/nitecore-thumb-leo-thumbleo-2.webp)
Body, materials, weight, colors
Weight | 25 g |
---|---|
Length | 74 mm |
Head diameter | 24 mm |
Material | plastic |
Colors | black |
The 25 g flashlight may not provide the same level of brightness or features as larger models. The best flashlight size depends on personal preference. This flashlight features a captivating black color.
![Nitecore Thumb Leo / 1](/p/6/642/nitecore-thumb-leo-thumbleo-1.webp)
System, LED, lens, reflector
Emitter | 1 x unspecified LED, 1 x unspecified 365nm UV LED |
---|---|
Color temperature | 6500 K |
Reflector | no |
Lens | no |
Switch | electronic side |
The color temperature choice depends on the light's use and personal taste. Some flashlights with electronic switches have programmable features.
![Nitecore Thumb Leo / 3](/p/6/642/nitecore-thumb-leo-thumbleo-3.webp)
Performance, flux, intensity, throw
Flux | 45 lm |
---|---|
Intensity | 150 cd |
Throw | 24 m |
CD/LM factor | 3.33 |
You mainly need a flashlight for basic tasks like finding keys or navigating in dimly lit areas, 45 lm can be enough. 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
Modes | 3 modes |
---|---|
Mode memory | no |
Ramping mode | no |
Strobe | no |
SOS/Beacon | yes |
A flashlight's modes are different output settings or brightness levels. The SOS signal is commonly used in outdoor adventures or survival scenarios.
Features, battery, protections
Battery | integrated Li-Ion battery |
---|---|
Battery indicator | yes |
Charger port | microUSB |
LVP | no |
Thermal regulation | no |
Protection | IPx8 |
Impact resistance | 1 m |
AUX LEDs | yes |
Magnetic | no |
Specials | UV light adjustable head red/blue light |
The Thumb Leo flashlight utilizes integrated Li-Ion battery as its power source. The battery indicator helps users check the battery status. The built-in charger allows for convenient and versatile charging. 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. A flashlight's impact resistance can vary. It depends on its design, construction, and intended use. Auxiliary LEDs usually use less power than the main light source. Thumb Leo's UV light can reveal urine and other stains left by pets.
Accessories, package contents
Package contents | keyring |
---|
Links
Official site | https://flashlight.nitecore.com/ |
---|
Conclusion, pros and cons
This Nitecore flashlight, like any other, has its strengths and weaknesses. Let's take a close look at both sides to understand this flashlight better. I share my thoughts on its standout features and the parts that might need improvement. Keep in mind, these are just my opinions, and you might have a different perspective.
Pros
- lightweight
- side switch
- multiple modes
- SOS/beacon function
- integrated battery
- battery indicator
- USB charger
- waterproof
- auxiliary LEDs
- UV light
Cons
- plastic body
- unspecified LED
- cool light
- moderated performance
- low intensity
- no mode memory
- no LVP
- no thermal regulation
- non-magnetic
Photos
![Nitecore Thumb Leo / THUMBLEO photo 1.](/p/6/642/t-nitecore-thumb-leo-thumbleo-0.webp)
![Nitecore Thumb Leo / THUMBLEO photo 2.](/p/6/642/t-nitecore-thumb-leo-thumbleo-1.webp)
![Nitecore Thumb Leo / THUMBLEO photo 3.](/p/6/642/t-nitecore-thumb-leo-thumbleo-2.webp)
![Nitecore Thumb Leo / THUMBLEO photo 4.](/p/6/642/t-nitecore-thumb-leo-thumbleo-3.webp)
![Nitecore Thumb Leo / THUMBLEO](/p/6/642/nitecore-thumb-leo-thumbleo-0.webp)
Comparisons
According to our statistics, the Nitecore Thumb Leo flashlight was most often compared on our site with the following flashlights.
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Updated: May 2, 2024