Dear friends who make lighting products, whether they are light sources or lighting fixtures, I believe they have heard of testing projects such as LM79, LM80, LM82, LM84, and even TM21. These require corresponding test reports when we apply for many energy efficiency certification projects. Today, I will briefly introduce the basic content of these projects to you. 1、 LM79LM79 specifies the testing methods for the total optical flux, electrical power, light intensity distribution, color parameters, color uniformity, and other parameters of SSL products. This standard includes SSL products for LED and integral LED lights (requiring only AC or DC drive). This standard does not include SSL products (LED chips, LED packaging, LED modules, etc.) that require external driver circuits or external heat sinks. SSL is different from traditional filament white light emitting and gas discharge light emitting principles. It is composed of electronic light emitted by semiconductors, including LED, OLED, Laser Diode (LD), and light emitting polymers. Generally speaking, testing can be divided into integrating sphere testing and distribution photometer testing: integrating sphere testing: voltage, current, power, color temperature, color rendering index, spectral distribution. Distribution photometer testing: voltage, current, power, total luminous flux, light intensity distribution For LM79, the integration sphere test does not measure light flux, otherwise it requires very complex steps such as auxiliary lights. 2、 LM80LM80 refers to the measurement of a light source, and "light source" only refers to packaging, arrays, and modules. The key points are as follows: a. The aging process should be separated from the testing process, and the temperature of Tc point should be strictly controlled to 55 degrees, 85 degrees, or the temperature specified by the supplier during the aging process. After aging to the specified testing interval, restore to the testing environment for photometric testing. b. It is required to test the luminous flux and color parameters, but the specific testing method is not strictly specified. The following are the original words in the standard: Photometric measurements shall be in compliance with the appropriate laboratory method for the LED light source under test c. There are high requirements for environmental control, temperature control of Tc, and power supply equipment. d. There are detailed requirements for tracking and recording samples and aging processes. Author: Mr. Li, Testing and Certification https://www.bilibili.com/read/cv10659278/ Source: Bilibili
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China