Lumintop IYP25 Nichia 500lm flashlight review: Pros and Cons

Nichia 219C LED
500 lm output
2070 cd intensity
2 x AA batteries

The Lumintop IYP25 Nichia flashlight released in 2019. It uses Nichia 219C LED, SMO reflector and 2 x AA batteries. The powerful emitter in this flashlight provides up to 500 lm output, 2070 cd intensity, and a beam distance of 91 m.

Table of Contents

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 Lumintop IYP25 Nichia, then tell us.

Lumintop IYP25 Nichia / IYP25N

The IYP25 Nichia flashlight is a key tool in many situations. It's used for everyday tasks, outdoor adventures, emergencies, and professional work. This light has 3 modes of lighting. Without mode memory, each time you turn on the IYP25 Nichia, it will start from the default or first mode in the sequence.

Lumintop IYP25 Nichia specifications

NameIYP25 Nichia
Rated 4 / 5 based on 1416 user votes.

Flashlights let you navigate in the dark. They help you find supplies and signal for help. They also provide comfort and security in tough times.

Lumintop IYP25 Nichia / 1

Body, materials, weight, colors

Weight35.5 g
Length138.5 mm
Body diameter18.5 mm
Head diameter18.5 mm
Materialaluminium alloy with HAIII hard-anodized finish

An extremely lightweight handheld flashlight weighs 35.5 g. The best flashlight size depends on personal preference. It also depends on intended use and the specific features you want. Aluminium is a lightweight material, which is beneficial for IYP25 Nichia flashlight. Flashlight makers widely use HAIII coating. It is durable, resists corrosion, and improves grip. It also looks good. This flashlight comes in a sleek black color option.

Lumintop IYP25 Nichia / 3

System, LED, lens, reflector

EmitterNichia 219C LED
Color temperature4500 K
Lenstoughtened AR coated glass
Switchmechanical rear, rotary front

Nichia Corporation is a highly regarded Japanese LED manufacturer. Its high-quality LEDs are well-known. Color temperature is a characteristic of light. It is used to quantify the color appearance of light sources. Flashlights use the smooth reflector when long-range light is important. This includes searchlights and thrower flashlights. The AR coating of the lens helps to reduce these reflections. It does this by changing the lens surface's refractive index.

The IYP25 Nichia uses multiple switches. The switches' placement and design determine this. They allow for one-handed operation. Mechanical switches often offer tactile feedback. Users can feel a distinct click or resistance when they press the switch. The rear switch of the IYP25 Nichia is rugged and durable. It can withstand harsh conditions and repeated use.

Lumintop IYP25 Nichia / 2

Performance, flux, intensity, throw

Flux500 lm
Intensity2070 cd
Throw91 m
CD/LM factor4.14

You mainly need a flashlight for basic tasks like finding keys or navigating in dimly lit areas. 500 lm can be enough. It can also be enough for occasional use around the house. The IYP25 Nichia flashlight has 2070 cd. It provides a much brighter and more intense beam. The throw distance is the farthest distance the flashlight can light an object. The cd/lm factor is the candela-to-lumen ratio. It shows how concentrated a light source's output is.

A flashlight with a higher CRI can show colors more accurately. This is useful for examining objects, it helps tell colors apart in low-light or nighttime. The IYP25 Nichia has a CRI of 90, it is useful in everyday use. Accurate color perception improves the visual experience..

Software, user interface, modes

Modes3 modes
Mode memoryno
Ramping modeno

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences.

Features, battery, protections

Battery2 x AA batteries
Battery indicatorno
Charger portno
Thermal regulationno

The Lumintop IYP25 Nichia flashlight is powered by 2 x AA batteries. The IYP25 Nichia doesn't have charger port. The IYP25 Nichia flashlight lacks built-in LVP. You should use a protected battery to prevent over-discharging. This flashlight doesn't have built-in temperature control. The "6" in the IP68 rating shows the level of protection. It's against solid objects, like dust and foreign particles. The flashlight has an IP68 rating. It can withstand being submerged in water beyond 1 meter for a prolonged period. The manufacturer specifies this.

Accessories, package contents

Package contentsdiffuser
spare o-ring

Replacing worn or damaged O-rings helps a lot. It keeps up the flashlight's durability and performance.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the IYP25 Nichia flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

Conclusion, pros and cons

This Lumintop 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.


  • lightweight
  • aluminium body
  • warm light
  • AR coated lens
  • tactical switch
  • rotary switch
  • superior CRI
  • multiple modes
  • dust protected
  • waterproof


  • moderated performance
  • low intensity
  • no mode memory
  • no battery indicator
  • no built-in charger
  • no LVP
  • no thermal regulation
  • no auxiliary LEDs
  • non-magnetic


Lumintop IYP25 Nichia / IYP25N photo 1.
Lumintop IYP25 Nichia / IYP25N photo 2.
Lumintop IYP25 Nichia / IYP25N photo 3.
Lumintop IYP25 Nichia / IYP25N photo 4.
Lumintop IYP25 Nichia / IYP25N

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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.
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