Klarus G15 4000lm In-depth review, Pros and Cons

Cree XHP70.2 LED

4000 lm output

8850 cd intensity

1 x 21700 Li-Ion battery

The Klarus G15 (G15) released in 2019. It uses Cree XHP70.2 LED, OP reflector and 1 x 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 4000 lm output, 8850 cd intensity, and a beam distance of 188 m.

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The G15 flashlight is an essential tools for emergency preparedness. In situations like natural disasters or blackouts, when electricity is unavailable, a flashlight becomes crucial for navigating dark areas, locating supplies, or signaling for help. This light has 5 modes of lighting. The memory function is a nice feature, the light will remember the last used mode. It has a strobe function, which is one of the most effective self defense tools available. This USB rechargeable flashlight eliminates the need for disposable batteries, offering a more eco-friendly and cost-effective solution.

Klarus G15 (G15) pictures

The specifications below are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Klarus G15, then don’t hesite and signal the problem to us.

Klarus G15 (G15) specifications

Brand	Klarus
Name	G15
Type	G15
Rating	★★★★★ Rated 3/5 based on 1298 user votes.
Launch	2019
Form	flashlight

The G15 flashlight offers precise and focused illumination. Unlike ambient or overhead lighting sources, flashlights allow you to direct the light exactly where you need it.

Body

Weight	70 g
Length	120.6 mm
Body diameter	25.3 mm
Head diameter	27.6 mm
Material	aluminium alloy with HAIII hard-anodized finish
Colors	black

The G15 is small, compact, and designed for ultra-portability. The length of the G15 flashlight can affect its portability. A shorter flashlight is generally easier to carry in a pocket, bag, or pouch, making it more convenient for everyday use or when you're on the go. The aluminium body of G15 has excellent thermal conductivity, meaning it can effectively dissipate heat generated by the flashlight's components, such as the LED or battery.

The HAIII process produces a hard and wear-resistant surface on the aluminum, making it more resistant to scratches, abrasions, and impacts. This improves the overall durability of the flashlight body. The G15 flashlight is offered in a stylish black color.

System

Emitter	Cree XHP70.2 LED
Color temperature	6500 K
Reflector	OP
Lens	toughtened AR coated glass
Switch	electronic side

The emitter of G15 manufactured by Cree, a US-based LED manufacturing company. Cree is a well-regarded LED manufacturer known for its high-quality products and innovation in the lighting industry. Color temperature is a characteristic of light. It is measured in units called Kelvin (K) and is used to quantify the color appearance of light sources, particularly white light. The orange peel reflector of G15 is designed to improve the beam characteristics of the flashlight by diffusing the light emitted from the light source.

The AR coating reduces the loss of light due to reflections, allowing more light to pass through the lens. This can increase the overall brightness and efficiency of the G15 flashlight. The G15 utilizes electronic switch. Electronic switches on flashlights provide a range of advantages and additional features compared to mechanical switches.

Performance

Flux	4000 lm
Intensity	8850 cd
Throw	188 m
CD/LM factor	2.21

With 4000 lm, the G15 flashlight will provide an exceptionally bright and powerful beam of light. It can illuminate large areas, outdoor spaces, or even act as a temporary spotlight in certain situations. With 8850 cd, the G15 flashlight provides a noticeably brighter and more intense beam of light. It can illuminate objects or areas with greater clarity and visibility, even at longer distances. The throw is the calculated distance in meters at which the flashlight produces a light intensity of 0.25 lux. Candela per lumen (cd/lm) is a measure of a flashlight's beam intensity relative to its total luminous flux or output. It quantifies the concentration of light emitted by the flashlight in relation to the total amount of light produced.

Software

Modes	5 modes
Mode memory	yes
Ramping mode	no
Strobe	yes
SOS/Beacon	yes

Modes on a flashlight refer to different output settings or levels of brightness that can be selected to suit different needs and preferences. The G15 has mode memory. Mode memory means that the flashlight will remember the mode you were using when the light was last turned off, and when you turn it on again. The G15 is tactical strobe ready. The strobe light is disorienting to the person it is aimed at which makes it difficult for them to concentrate. It has the SOS beacon function for an emergency situation. The SOS flashes Morse code so you can signal for help when needed. The SOS signal is recognized as an international distress call and is used to indicate an urgent need for assistance.

Features

Battery	1 x 21700 Li-Ion battery
Battery indicator	yes
Charger port	microUSB
LVP	yes
Thermal regulation	yes
Protection	IPx8
AUX LEDs	no
Magnetic	no

The Klarus G15 flashlight is powered by 1 x 21700 Li-Ion battery. The battery indicator lets you know when the battery is low, charging, or fully charged. The USB charger port on a flashlight can be particularly useful in emergency situations where access to power outlets may be limited. This flashlight has a built-in low voltage protection (LVP) to prevent damage to the cell from over-discharge, so protected cells are not necessary.

The built-in thermal control automatically adjusts brightness output to prevent overheating. The "8" in the IPx8 rating indicates the highest level of protection against water ingress.

Accessories

Package contents	21700 battery clip lanyard microUSB cable pouch spare o-ring

It comes with a battery. The battery must be fully charged before you first use your G15. The clip is useful to keep the light secured in your pocket. The lanyard prevents accidental loss of the flashlight. Instead of searching for compatible O-rings or waiting for replacements to arrive, having spare O-rings readily available allows for convenient and immediate repairs or replacements.

The performance of the Klarus G15 flashlight is measured according to the ANSI / NEMA FL1 Standard 30 seconds after switching the light on. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.