Flashlight Testing

Guarantee flashlight quality & performance, every order, every time.


Basing our performance and quality standards on those set by the American National Standards Institute (ANSI) ensures that We are supplying our clients with products that meet the highest levels of quality and performance.

This dedication to quality is only one of the many ways Maytown makes an effort to lead the industry.

  • Output and runtime tests
  • Beam distance tests
  • Peak beam intensity tests
  • Impact resistance tests
  • Water resistance tests
flashlight performance test

How To Test A Flashlight For Brightness?

Thoroughly testing the brightness of a flashlight can be done using an integrating sphere. An integrating sphere is a device that evenly distributes light over its surface. This makes it possible to measure a flashlight's overall light output with greater accuracy.

Lumen Test

The testing principle is that you can determine the flashlight's brightness by measuring the amount of light reflected off a surface. Using an integrating sphere, you can ensure that the light is distributed evenly over the surface, giving you a more accurate measurement.

  • Place the flashlight in the middle of the integrating sphere, turn it on, and distribute the light over the sphere's surface.
  • Measure the amount of light intensity with a light meter.
  • Calculate the brightness of the flashlight.
  • Repeat steps 1-3 for each flashlight and gets accurate results.
  • Compare the results, and see which flashlight is the brightest.

Integrating Sphere Specification

  • Spectral range: 350 to 1000 nm
  • Wavelength accuracy: ±0.3nm
  • Luminous flux range: 0.01 lm~200,000 lm
  • Typical applications: LED intensity/beam flux, laser power, beam candela, mean spherical candlepower
Integrating Sphere
flashlight 18650 battery testing

Flashlight Battery Test

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The voltage will decrease as the battery discharge.

Test the battery with a multimeter, set it to DC voltage, and touch the black lead to the negative end of the battery and the red lead to the positive end. You should get a reading in volts that will tell you how much charge is left in the battery.

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Specialized Battery Tester

A battery tester is a tool used to measure flashlight batteries' capacity and discharge rate. As a professional flashlight manufacturer with over 12 years of experience, this is a typical piece of equipment in our laboratory for testing batteries.

Here are the steps of using a specialized battery tester:

  • Turn on the testing equipment and select the correct setting for your flashlight battery.
  • Place the battery in the tester and make sure it makes good contact with the terminals.
  • The tester will do all the work and show you the battery's specs
  • Compare the data with the specifications of a good flashlight battery.

Waterproof Rating Test

To ensure that a flashlight can withstand being submerged in water, Maytown engineers must adequately test it for its waterproof rating. Our lab has various testing equipment to test a flashlight for waterproofing.

Water Submersion Test

The flashlight is submerged in water for some time to see if any water gets inside. It is important to note that the depth and duration of the water submersion will vary depending on the waterproof rating of the flashlight.

  • IPX8: Submerged in up to 2 meters of water for up to 30 minutes
  • IPX7: Submerged in up to 1 meter of water for up to 30 minutes.

Water Spray Test

This test simulates rain or other forms of water spray that a flashlight might encounter in the real world.

  • The flashlight is placed in a chamber and sprayed with water from all sides for some time.
  • The water spray's intensity and duration will differ depending on the flashlight's waterproof rating.
  • A flashlight with an IPX4 waterproofing level can withstand up to 10 minutes of water spray from all directions.
Flashlight Waterproof Rating Test
Temperatures & Humidities Test

Temperatures & Humidities Test

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Temperature Test

This test is used to determine the highest and lowest temperatures that a flashlight can withstand.

The flashlight is placed in a chamber that can simulate different temperature extremes and then left for a while to see if there are any adverse effects. The temperature extremes and duration of the test will vary depending on the flashlight's rating.

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Humidity Test

The highest humidities that a flashlight can endure are determined through this test. The flashlight is put in a chamber with various humidity levels, then left for some time to see whether there are any adverse effects.

Maytown engineers will test the torch light with a humidity rating of 95% in our chamber for up to 24 hours.

Flashlight Button Test

Before ordering bulk flashlights, you should know that one of the most important features is the button. You need to be able to press it quickly and efficiently to turn the light on and off, both for samples and mass products.

That's why manufacturers use button press testing machines to test the quality of their flashlights. The device repeatedly presses the flashlight button, checking for durability and consistency.

  • The key life testing machine is programmed to press the button at different speeds and with varying amounts of pressure to get accurate results.
  • Ensuring that the flashlight button will perform well in a variety of conditions.

In addition, the machine also checks for issues like button sticking and bouncing. These can be significant problems with a flashlight. The device is designed to identify them so that technicians can fix them before the flashlight goes on the market.

key life testing machine

How To Check The Impact Ability Of A Flashlight

flashlight impact test machine
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Impact Test

The impact test is a primary method for determining a flashlight's resistance to being dropped or coming into contact with a hard surface. The flashlight is placed on a vertical platform and dropped from different heights onto a concrete floor.

  • A flashlight will be dropped from a height of 1.2 meters onto a concrete floor.
  • By measuring the amount of damage sustained by the flashlight during the impact test, manufacturers can determine its suitability for use in rugged conditions.
  • The impact test can also help to identify potential design flaws that could lead to breakage.
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Drum Roller Drop Testing

  • The flashlight is placed on a closed box and rolled along as the box moves.
  • The speed and distance of the roll are carefully monitored, as well as the number of times the flashlight is dropped.
  • It is an essential part of the manufacturing process for many types of flashlights.

Beam Distance Test

Beam distance is the farthest distance that light from a flashlight can travel and still be visible to the human eye. This is an important parameter because it will determine how far you can see with the flashlight.

  • Measure the luminous intensity of a light source in a particular direction.
  • The unit of measurement is the candela (cd), and the luminous intensity is usually measured in candela per square meter (cd/m2).
  • Set up a photometer at a specified distance from the flashlight.
  • The photometer will measure the luminous intensity of the light source, and from there, you will be able to calculate the beam distance.
beam distance test

Advanced Testing Procedures

Maytown is committed to providing the highest quality products to its customers. In addition to meeting the requirements of the ANSI Standard, Maytown also subjects its products to various tests to ensure that they can withstand real-life usage conditions.

Shakeout Test

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A basic assessment of a product's durability.
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Determine the scratch-resistant and wear-resistant abilities of the surface of the flashlight.

Bending Test

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Establish how well the flashlight maintains its brightness after being bent.

Salty Spray Test

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Evaluate the corrosion-resistant capability.
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The flashlight is sprayed with salt and stored in a high humidity environment.
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After a set period, the flashlight is removed and observed for corrosion.

Ultraviolet Radiation Test

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The UV light is shone on the flashlight for a certain amount of time.
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Evaluate any changes in the light output or color after exposure.

Environmental Test

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Assess the durability of the flashlight in extreme temperatures.
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The flashlight is placed in a chamber and exposed to high or low temperatures for a set period.
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Observe the flashlight for any changes in performance after exposure.

Vibration Test

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Place the flashlight on the vibration table and set the frequency and amplitude according to IEC 60068-2-6.
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Check the light beam, housing, button, power indicator, O-ring etc., for damage after the test.

Switch Test

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Establish the resistivity of the switch and also compare it to the other controls.
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The switch will be pressed repeatedly for the set number of times until it fails.

Temperature Test

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With the help of a thermal camera, take pictures of the flashlight at different current values and compare the results.
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Determined by the results of this test, how well the flashlight handles heat dissipation.

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