Testing methods for LED indoor luminaires involve a number of aspects to ensure that the safety, reliability and performance of the luminaires meet the relevant standards and requirements. The following are some common testing methods:

I. Light parameter testing
Luminous flux: Use an integrating sphere photometer to measure the total light output emitted by the LED luminaire in lumens (lm). This is an important indicator to assess the brightness of the lamps and lanterns.
Luminous efficacy: Calculated by dividing the luminous flux by the input power in lumens per watt (lm/W). Luminous efficiency reflects the ability of a luminaire to convert electrical energy into light energy.
Color Temperature: The color temperature of the light is measured with the help of a color thermometer in Kelvin (K). Color temperature determines how warm or cool the light feels.
Color Rendering Index: A color rendering index tester is used to evaluate the ability of a light to reproduce the color of an object. The higher the color rendering index, the truer the color reproduction.
Light Intensity Distribution: Use a distribution photometer to measure the light intensity distribution of a luminaire at different angles in order to plot a light intensity distribution curve. This helps to evaluate the lighting effect of the luminaire and the applicable scene.
Electrical Parameters Detection
Input Voltage and Current: Measure the input voltage and current of the luminaire using a voltmeter and ammeter to ensure that it works within the specified range.
Power Factor: Detect the power factor of the luminaire by using a power factor tester, a higher power factor indicates a more efficient utilization of electrical energy.
Insulation Resistance Test: Measure the insulation resistance of the luminaire using an insulation resistance tester to ensure that it is well insulated to prevent leakage and other safety issues.
Voltage withstand test: Apply a certain high voltage to the electrical part of the lamps and lanterns for a period of time to check whether there is breakdown, flashover and other phenomena to verify the electrical insulation strength of the lamps and lanterns.
Third, thermal parameters testing
Operating temperature: use thermocouples or infrared thermometer to measure the working temperature of LED chips and lamps shell, to ensure that it operates within the permitted temperature range to ensure the life and performance of the lamps.
Heat dissipation performance testing: For LED lamps and other lamps with large heat generation, it is necessary to test its heat dissipation performance. You can measure the temperature of the key parts of the lamps and lanterns after the lamps and lanterns have been working normally for a period of time to check whether the temperature is within the allowed range.
Reliability test
High-temperature and high-pressure and its impact test: Place the lamps in a high-temperature and high-pressure environment and conduct impact test to assess the reliability and stability of the lamps in a high-temperature and high-pressure environment.
Low-temperature and low-pressure and its impact test: Place the lamps in a low-temperature and low-pressure environment to conduct impact tests to assess the reliability and stability of the lamps in a low-temperature and low-pressure environment.
Temperature Cycling Test: Place the luminaire in a temperature cycling test chamber to conduct temperature change test and evaluate the reliability and stability of the luminaire under temperature cycling change.
Constant Humidity and Heat Test: Place the luminaire in a constant temperature and humidity chamber for constant humidity and heat test to evaluate the corrosion resistance and stability of the luminaire in a hot and humid environment.
Vibration test: Place the luminaire on the vibration test bench and conduct vibration test to evaluate the structural integrity and performance stability of the luminaire in the vibration environment.
Lifetime Testing: Luminaires are evaluated for longevity through accelerated aging tests to simulate prolonged use. This usually involves regular measurements of the luminous flux, power, color temperature and other parameters of the luminaire and comparing them with the initial parameters.
V. Appearance and Structure Inspection
Overall Appearance: Check whether there are any defects such as deformation, scratches, abrasion, paint loss, stains, etc. on the shell, lampshade and other parts of the luminaire.
Dimension check: Use gauges to measure the external dimensions of the lamps and lanterns, including length, width, height, etc., and check whether they meet the requirements of design drawings or product specifications.
Structure check: check whether the parts of the lamps and lanterns are firmly connected, whether there is any looseness, gap is too big and other problems.
Accessories check: Check whether the accessories of the lamps and lanterns are complete, such as bulbs, drivers, remote control, etc., and whether the quality of these accessories meets the requirements.
Sixth, safety and environmental protection testing
Grounding test: Check whether the grounding of the luminaire is good to ensure that in the event of an electrical fault, the current can be safely channeled into the earth.
Anti-electrocution protection test: Use test probes and other tools to check whether the lamps and lanterns have good anti-electrocution protection measures in the shell, lampshade and other parts.
Hazardous substance test: Detect whether the materials used in the lamps and lanterns contain lead, mercury, cadmium, hexavalent chromium and other hazardous substances. If the content of hazardous substances exceeds the specified limits, it may cause harm to human health and the environment.
To summarize, the testing methods for ED indoor luminaires cover a wide range of optical parameters, electrical parameters, thermal parameters, reliability, appearance and structure, as well as safety and environmental protection. These testing methods help to ensure that the quality, safety and reliability of luminaires comply with the relevant standards and requirements.