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As the rules change or new procedures are developed, please note that these interpretation and/or guidance may not apply; you should always refer to the latest rules and guidance documents to determine what equipment authorization procedures should be followed. For the latest guidance on specific topics or you don't know where to start, please feel free to contact GTG Group experts.

Bulb lights are one of the most commonly used lighting sources in the world. Its design and structure make it an ideal option for both commercial and residential use. However, before these lights are available on the market, they must be tested and certified to ensure their quality and durability.

How can GTG assist you with the tests on bulb lights?

(1) Electrical safety test

  • Dielectric strength test: the dielectric strength test is conducted to ensure that the insulation material used in the bulb light can withstand the voltage that it is designed for. The test involves applying a high voltage to the insulation material and measuring the amount of current that flows through it. If the current is too high, it indicates that the insulation material is not adequate and may cause an electrical shock or fire.
  • High voltage test: the high voltage test is conducted to ensure that the bulb light can withstand the voltage that it is designed for. The test involves applying a high voltage to the bulb light and measuring the amount of current that flows through it. If the current is too high, it indicates that the bulb light may fail and pose an electrical shock or fire risk.
  • Flammability test: the flammability test is conducted to determine whether the bulb light can withstand a fire. The test involves exposing the bulb light to a flame and measuring its performance. If the bulb light catches fire or fails during the test, it indicates that it may pose a fire risk.
  • Electrical shock test: the electrical shock test is conducted to ensure that the bulb light does not pose an electrical shock risk to users. The test involves applying a voltage to the bulb light and measuring the amount of current that flows through it. If the current is too high, it indicates that the bulb light may pose an electrical shock risk.
  • Overvoltage test: the overvoltage test is conducted to ensure that the bulb light can withstand voltage spikes and surges. The test involves applying a higher than normal voltage to the bulb light and measuring its performance. If the bulb light fails during the test, it indicates that it may not be able to withstand voltage spikes and surges and may fail prematurely.

(2) Photometric test

  • Luminous flux test: this test measures the total amount of light emitted by a bulb. The unit of measurement is the lumen (lm), and the higher the number of lumens, the brighter the light.
  • Color temperature test (CCT): this test measures the color of the light produced by a bulb. The unit of measurement is the Kelvin (K), and the higher the Kelvin, the cooler the light appears. Warm light has a lower CCT (2700K-3000K), while cool light has a higher CCT (5000K-6500K).
  • Color rendering index (CRI) test: this test measures how well a bulb reproduces colors in comparison to a natural light source. This test is essential for art galleries, museums, and other places where accurate color representation is critical. The CRI is rated on a scale of 0-100, with a higher number indicating better color rendering.
  • Beam angle test: this test measures the angle at which a bulb’s light is emitted. The wider the beam angle, the more area the light covers.
  • Flicker test: this test measures the frequency of a bulb’s light, and it’s essential for people who are sensitive to flickering light.
  • Dimming test: this test measures how well a bulb can be dimmed, and it’s essential for those who want to adjust the brightness of their lighting.

(3) Photobiological safety test

Light bulbs that emit harmful levels of radiation can cause various health problems, including skin and eye damage, photokeratitis, and even skin cancer. Therefore, it is essential to test light bulbs for photobiological safety to ensure that they are safe for use in our homes and workplaces.

  • Blue light hazard test: bulb lights emit a range of wavelengths of light, including blue light. Blue light can cause retinal damage and macular degeneration over time. Therefore, all bulb lights undergo the Blue Light Hazard Test to determine the level of blue light emissions. The test measures the potential damage to the retina and determines if the light is safe for use.
  • UV radiation test: bulb lights also emit ultraviolet (UV) radiation, which can cause skin damage and increase the risk of skin cancer. The UV Radiation Test measures the amount of UV radiation emitted by the light and determines if it is within safe levels.
  • Flicker test: flicker is the rapid change in brightness of a light, which can cause headaches, eye strain, and even seizures in some people. The Flicker Test measures the frequency of flicker and determines if it is within safe levels.
  • Infrared radiation test: infrared radiation can cause skin damage and increase the risk of skin cancer over time. The Infrared Radiation Test measures the amount of infrared radiation emitted by the light and determines if it is within safe levels.
  • Thermal radiation test: bulb lights also emit thermal radiation, which can cause burns and skin damage. The Thermal Radiation Test measures the amount of thermal radiation emitted by the light and determines if it is within safe levels.

(4) EMC test

The EMC test is conducted to ensure that the bulb light does not interfere with other electrical equipment. The test involves measuring the amount of electromagnetic interference that the bulb light produces. If the bulb light produces too much interference, it indicates that it may interfere with other electrical equipment and may need to be modified or replaced.

There are several EMC testing standards for bulb lights, including the European Union’s EMC Directive and the Federal Communications Commission’s (FCC) EMC regulations. These standards ensure that bulb lights meet the necessary requirements for EMC compliance.

  • Radiated emissions test: this test is designed to measure the amount of electromagnetic radiation emitted by the bulb light. The test is conducted in an anechoic chamber, which is a special room designed to absorb electromagnetic waves. The bulb light is placed on a turntable, and the radiation emitted by the bulb light is measured using a spectrum analyzer.
  • Conducted emissions test: this test is designed to measure the amount of electromagnetic radiation emitted by the bulb light through its power cord. The bulb light is connected to a power source, and the radiation emitted by the bulb light is measured using a spectrum analyzer.
  • Radiated immunity test: this test is designed to measure the ability of the bulb light to withstand electromagnetic radiation from external sources. The bulb light is placed in an anechoic chamber, and a signal generator is used to produce electromagnetic radiation. The bulb light is then monitored to ensure that it continues to operate normally.
  • Conducted immunity test: this test is designed to measure the ability of the bulb light to withstand electromagnetic interference through its power cord. The bulb light is connected to a power source, and a signal generator is used to produce electromagnetic interference. The bulb light is then monitored to ensure that it continues to operate normally.
  • Electrostatic discharge (ESD) test: this test is designed to simulate the effects of static electricity on the bulb light. The bulb light is subjected to a high-voltage discharge, and its response is monitored to ensure that it continues to operate normally.
  • Electrical fast transient (EFT) test: this test is designed to simulate the effects of high-frequency electrical transients on the bulb light. The bulb light is subjected to a series of high-speed electrical pulses, and its response is monitored to ensure that it continues to operate normally.
  • Surge test: this test is designed to simulate the effects of power surges on the bulb light. The bulb light is subjected to a high-voltage surge, and its response is monitored to ensure that it continues to operate normally.
  • Voltage dips and interruptions test: this test is designed to simulate the effects of voltage dips and interruptions on the bulb light. The bulb light is subjected to a series of voltage dips and interruptions, and its response is monitored to ensure that it continues to operate normally.
  • Power frequency magnetic field test: this test is designed to measure the susceptibility of the bulb light to magnetic fields. The bulb light is subjected to a low-frequency magnetic field, and its response is monitored to ensure that it continues to operate normally.
  • Harmonics and flicker test: this test is designed to measure the amount of harmonic distortion and flicker produced by the bulb light. The bulb light is connected to a power source, and its harmonic distortion and flicker are measured using a power quality analyzer.

(5) Mechanical tests

  • Drop test: this test is performed to check the bulb’s ability to withstand accidental drops. The bulb is dropped from a specific height onto a hard surface, and the test is repeated several times to ensure that the bulb can withstand accidental drops without breaking.
  • Impact test: the impact test is designed to simulate the impact of a bulb light falling from a certain height. This test is crucial in determining the durability of the bulb light and its ability to withstand accidental drops. During this test, the bulb light is dropped from a height of one meter onto a concrete surface.
  • Vibration test: the vibration test is conducted to determine the ability of the bulb light to withstand vibrations and shocks during transportation. The bulb light is subjected to vibrations of various frequencies and amplitudes to simulate the conditions it may encounter during transportation.
  • Torsion test: this test is designed to check the bulb light’s ability to withstand twisting forces. The bulb light is held at both ends and twisted in opposite directions to a certain angle. The test is repeated several times, and the bulb light is checked for any damage or breakage.
  • Pressure test: in this test, the bulb light is subjected to a certain level of pressure to check its ability to withstand external pressure. The test is repeated several times, and the bulb light is checked for any damage or breakage.

(6) Environmental test

  • Thermal shock test: this test is performed to check the bulb light’s ability to withstand sudden changes in temperature. The bulb light is subjected to extreme temperatures, and the test is repeated several times to ensure that the bulb light can withstand thermal stress without breaking.
  • Humidity test: in this test, the bulb light is subjected to a specific level of humidity to check its ability to withstand moisture. The bulb light is checked for any damage or breakage after the test.
  • Corrosion test: this test is performed to check the bulb light’s ability to withstand corrosion. The bulb light is exposed to a certain level of salt spray or other corrosive substances, and the test is repeated several times to ensure that the bulb light can withstand corrosion without damage or breakage.
  • UV test: this test is performed to check the bulb light’s ability to withstand UV radiation. The bulb light is exposed to a specific level of UV radiation, and the test is repeated several times to ensure that the bulb light can withstand UV radiation without damage or breakage.
  • Water test: in this test, the bulb light is submerged in water to check its ability to withstand water immersion. The test is repeated several times, and the bulb light is checked for any damage or breakage.

How can GTG assist you with the certifications or markings for bulb lights?

(1) Energy Star certification

The Energy Star certification is a program initiated by the US Environmental Protection Agency (EPA). The certification is designed to help consumers identify and purchase energy-efficient products. Energy Star certifications for bulb lights are awarded based on the products’ energy efficiency and the quality of light they produce. Bulb lights that have been certified by Energy Star will provide consumers with the assurance that they are purchasing energy-efficient products that meet the highest standards of quality.

(2) UL certification

UL certification is a safety certification that is granted by Underwriters Laboratories (UL), a global safety certification organization. UL certification for bulb lights ensures that the products have undergone rigorous safety testing and meet the highest safety standards. The certification also ensures that the products are not hazardous to the environment and meet all relevant environmental regulations.

(3) CE certification

CE certification is a certification that is required in the European Union and other European countries. The certification ensures that the products meet all relevant safety and environmental regulations in those countries. CE certification for bulb lights is essential for manufacturers who want to sell their products in the European market.

(4) RoHS certification

RoHS certification is a certification that is required in the European Union. The certification ensures that the products do not contain any hazardous substances such as lead, mercury, or cadmium. RoHS certification for bulb lights is essential for manufacturers who want to sell their products in the European market.

(5) FCC certification

FCC certification is a certification that is required in the United States. The certification ensures that the products comply with all relevant Federal Communications Commission (FCC) regulations. FCC certification for bulb lights is essential for manufacturers who want to sell their products in the US market.

(6) TUV certification

TUV certification is a safety certification that is granted by TUV Rheinland, a global safety certification organization. TUV certification for bulb lights ensures that the products have undergone rigorous safety testing and meet the highest safety standards. The certification also ensures that the products are not hazardous to the environment and meet all relevant environmental regulations.

(7) ETL certification

ETL certification is a safety certification that is granted by Intertek, a global safety certification organization. ETL certification for bulb lights ensures that the products have undergone rigorous safety testing and meet the highest safety standards. The certification also ensures that the products are not hazardous to the environment and meet all relevant environmental regulations.

(8) CQC certification

CQC certification is a certification that is required in China. The certification ensures that the products meet all relevant safety and environmental regulations in China. CQC certification for bulb lights is essential for manufacturers who want to sell their products in the Chinese market.

(9) BEE certification

BEE certification is a certification that is required in India. The certification ensures that the products meet all relevant energy efficiency and environmental regulations in India. BEE certification for bulb lights is essential for manufacturers who want to sell their products in the Indian market.

Why the biggest brands trust GTG Group?

GTG Group (Global Testing Group) is a certification company that offers testing and certification services to different industries. Our expertise in bulb lights testing and certification has made us a trusted name in the industry.

(1) Independent and impartial testing

GTG Group is a third-party testing company, which means we are not affiliated with any specific manufacturer. This impartiality can provide camera manufacturers and consumers with confidence in the accuracy and reliability of the testing process, and ensure that the camera meets the required standards.

(2) Confidentiality and security

GTG Group understands the importance of confidentiality and security when it comes to testing and certification. We ensure that our clients’ data and information are kept confidential and secure at all times. This ensures that our clients’ intellectual property and trade secrets are protected.

Contact GTG Group today for bulb lights testing and certification to avoid any legal issues that may arise from using faulty bulb lights.

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