A luminaire aging rack is a device used to test the performance of luminaires. Its main function is to conduct long-term aging tests on luminaires, simulating the working conditions of luminaires in actual use, to detect their performance stability and reliability. Aging tests can reveal potential problems with luminaires, such as dead lights, dim lights, flickering, color shifts, etc., ensuring that luminaires meet certain quality standards before leaving the factory.

The process of testing luminaires on an aging rack generally includes the following steps:

1. Place semi-finished or dipped high-quality luminaires on the aging rack and connect them to the corresponding switch power socket based on the rated operating voltage of the product.

2. Turn on the power switch of the aging test rack and check whether each luminaire is already illuminated according to the corresponding power switch that matches the input working voltage. Also, ensure that the luminaires operate at full output power during the aging process.

3. The aging test time is generally not less than 24 hours. During the aging process, the luminaires are subjected to multiple power-on and power-off tests, with each power-on and power-off time typically being 20 seconds. Additionally, vibration tests on the luminaires should be conducted periodically (e.g., every 2 hours) during the aging process to ensure stability under vibration conditions.

4. After the aging test is completed, turn off the power switch of each aging test rack. Once the ambient temperature of the luminaires drops to room temperature, remove the luminaires from the aging test rack and proceed to the next process.

5. If any abnormalities occur during the aging process, the test should be terminated immediately. Remove the defective products from the aging rack and record the reasons for the defects. Defective products should be sent to the inspection and repair unit for processing.

6. Aging personnel need to regularly (e.g., every 2 hours) fill out aging record cards to record the aging status of the luminaires.

Through these steps, the luminaire aging rack can effectively test the performance stability and reliability of luminaires, providing important guarantees for luminaire production and quality control. Please note that different types of luminaires and aging racks may have different testing procedures and requirements. Specific operations should refer to the corresponding product manuals or testing standards.

Dark room testing of light fixture brightness refers to testing the brightness of light fixtures in a closed environment without external light interference. This testing method is primarily used to more accurately measure brightness indicators such as luminous flux, illuminance, luminous efficacy, as well as characteristics such as the light distribution and emission angle of the light fixture.

The role of dark room testing of light fixture brightness includes the following points:

1. Eliminating external light interference: Testing in a dark room can avoid the influence of external light on the test results, making the measurement results more accurate and reliable.

2. Simulating real-world usage environments: Dark room testing can simulate the lighting effects of light fixtures in actual usage environments, such as nighttime or low-light conditions, thereby better evaluating the performance of the light fixture.

3. Comprehensive testing: Dark room testing allows for comprehensive testing of light fixtures from various angles and orientations, including the front, side, and back of the fixture, to obtain more comprehensive performance data.

During dark room testing of light fixture brightness, light measurement devices such as photometers and illuminance meters are generally used to measure brightness indicators of the light fixture. Before testing, the light fixture is placed on a testing platform, and its angle and position are adjusted according to testing requirements. Then, the testing equipment collects and analyzes the light emitted by the fixture to obtain brightness data. This data can be used to evaluate the performance of the fixture, compare differences between different fixtures, and provide reference for the design and production of fixtures.

Furthermore, dark room testing can also be used to test and analyze other optical properties of the light fixture, such as color temperature and color rendering index, to more comprehensively evaluate the performance and quality of the fixture.

In summary, dark room testing of light fixture brightness is an important aspect of quality control and research and development in the lighting industry. It provides more accurate and comprehensive performance data for light fixtures, thus offering strong support for the design, production, and application of light fixtures.

A hydraulic pressure testing machine is a device used to test the water pressure resistance of explosion-proof coiled tubing, waterproof and dustproof lamps, and explosion-proof electrical appliances. Its main function is to test the sealing performance and pressure resistance of products to ensure that they do not leak or rupture under normal working conditions, thus ensuring safety.

During the testing of casings, the hydraulic pressure testing machine uses a pressure pump to provide water flow capacity, pressurizing the tested item (such as a casing) to the set pressure. After a period of time, the changes in the casing are observed. If the casing can remain intact without leakage or rupture under the set pressure, it can be considered to have passed the hydraulic pressure test.

The testing principle of the hydraulic pressure testing machine is to use an air-driven hydraulic pressure intensifier to pressurize water or hydraulic oil and conduct pressure tests on various pipe fittings or valves to detect their sealing performance and pressure resistance. During the test, the pressure can be set via a computer, and the system automatically stops the machine after reaching the specified pressure to maintain pressure. After the specified pressure holding time, the pressure drop is observed to determine the product's quality.

In addition, the hydraulic pressure testing machine can also perform burst pressure tests, in which no upper pressure limit is set, and the system automatically pressurizes until the product ruptures. The system automatically records the maximum pressure reached. This test is typically used to determine the product's maximum pressure resistance capability.

In summary, the hydraulic pressure testing machine is an important testing device that effectively tests the sealing performance and pressure resistance of various products, providing strong protection for product quality control and safe use. During the testing of casings, the hydraulic pressure testing machine can simulate the pressure conditions in actual working environments, providing a comprehensive evaluation and analysis of the casing's performance.

A integrating sphere, also known as an integrating sphere or luminous flux sphere, is a hollow spherical cavity with an inner surface coated with white diffuse reflective material. The inner surface of this sphere is ideally spherical, and it is required that its deviation from the ideal spherical surface is no more than 0.2% of the inner diameter. The inner surface of the sphere is coated with an ideal diffuse reflective material, commonly using materials such as magnesium oxide or barium sulfate. These materials are mixed with a binder adhesive and uniformly sprayed onto the inner surface to achieve a high diffuse reflectance.

The main function of an integrating sphere is to test parameters such as the luminous flux, color temperature, and luminous efficacy of light sources. Due to the uniform illumination distribution inside the integrating sphere, it can reduce and eliminate measurement errors caused by differences in light shape, divergence angle, and detector response at different positions, thereby improving measurement accuracy. In addition, the integrating sphere can be used in conjunction with a spectrometer by connecting the integrating sphere's light output port to the spectrometer's entrance slit, ensuring that the angle at which the light source enters the spectrometer is the same, significantly improving measurement reproducibility.

When testing the brightness of luminaires, the integrating sphere utilizes the uniform reflection on its inner surface to multiply reflect and superimpose the light emitted by the luminaire inside the sphere, thus forming a uniform lighting environment. Then, by measuring the illuminance or luminance on the inner surface of the integrating sphere, parameters such as the total luminous flux or brightness of the luminaire can be calculated. This method can eliminate the influence of the luminaire's emission angle and shape on the measurement results, making the measurement results more accurate and reliable.

Please note that different types of luminaires and testing requirements may require the use of integrating spheres with different specifications for testing. Specific operations should refer to the corresponding product manuals or testing standards.