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Test Lab

Heper Testing Laboratory is equipped to clear the way for the highest quality of lighting luminaire with modern design as well as the use of product safety and performance characteristics. The laboratory is also one of the unique laboratories in Türkiye to adhere to the International Electrotechnical Commission (IEC) standards for the safety and performance testing of lighting luminaires and first laboratory in Türkiye which has got Optical-Radiation Test System and Aging-Life Time Test System for the light source and lighting luminaires. Heper Testing Laboratory works towards finding high quality, reliable, and cost-effective solutions for high-end lighting luminaires.

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Photobiological Safety

As the technology and performance of LEDs have progressed, there are increasing concerns regarding optical radiation produced by LEDs, and the potential exposure risks to humans. Therefore, we apply the necessary testing against blue light hazard in our lighting fixtures.



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Goniophotometer (C Type)

It is used to measure the intensity of light leaving a luminaire at various vertical and horizontal angles.


From this information, the photometric light distribution of the luminaire is derived, and quantities such as total lumen output, luminaire luminance, zonal lumen summary and other information that is included in a photometric report can be computed.


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Ulbricht Sphere
(Integrating Sphere)

Ulbricht Sphere, in diameter of 2 meters and in diameter of 0.3m, gives the opportunity to measure spectral measurements, CCT (Correlated color temperature), CRI (color rendering index), wavelength, color ratios and lumen value measurements of light sources.


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Aging Life Test System

It is used for normal/accelerated aging, lumen maintenance measuring, lifetime evaluation, and temperature characteristic testing for LED packages, arrays, and modules. It fully meets the requirements of standard IES LM-80 and another related standard.




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Light Transmittance

Light Transmittance and Haze Tester is the best suitable instrument for evaluation of light transmitting and light scattering properties of transparent materials.

The transmittance of an object or instance of material measures its effective transmission, given as a ratio of the total amount of light or electromagnetic radiation that is transmitted compared to the whole amount incident upon it.

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High-Low Temperature

Cabinet can simulate different environment condition. It's appropriate for testing material performance, such as resist heat, resist dry, resist humidity and resist cold in lighting fixtures.



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Corrosion Test
(Salt Spray Test)

Stimulate the actual natural conditions to do accelerated corrosion test; all the testing are based on common states on the natural environmental: such as combine with salt spray, hot air drying, humidity, low temperature, etc.


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Electrical Safety

Testing electrical and electronic products for electrical safety is intended to identify the potential risk of electrical shock to users. Evaluating a product for electrical safety usually includes the following tests:

High voltage test (dielectric withstand test) - measures the ability of an electrical product to withstand a high voltage applied between a product’s electrical circuit and ground. Leakage current test - evaluates whether current that flows between an AC source and ground does not exceed a specified limit. Insulation resistance test - calibrates the quality of the electrical insulation used. Ground continuity test - ensures that a clear path is available between all exposed metal surfaces and the power system ground.

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IP (Ingress Proof)

Classifies and rates the degree of protection provided against intrusion, dust, accidental contact, and water by mechanical casings and electrical enclosures.


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Needle-flame test

This method is used to test and assess the fire hazard presented by a plastic material using a needle flame.



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Glow Wire Test

This test is an electrical safety test designed to evaluate the flame resistant properties of plastic materials used in electrical devices. Its purpose is to protect against the risk of fire from overheated or electrically energized parts which may cause the plastic material to ignite.


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Tracking Test

This method is used to assess the susceptibility to the tracking of insulating materials that are exposed to high voltages outdoors.





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Humidity Test Chamber

It is used for testing To simulate various different types of materials for their tolerances of heat, cold, dry and humidity and the world climates.






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