LABORATORYGuangzhou LEDIALIGHTING Co.,Ltd
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LABORATORY
  • Test Center

    LEDIA testing center is a comprehensive laboratory providing full range of tests for lighting fixtures, including optical, electrical, safety, EMC, reliability and IP rating testing,etc. Most of the equipments and devices are world-class leading brand items with high performance and precision, such as Rohde & Schwarz from Germany, Tektronix and FLIR from U.S., Konica Minolta from Japan, Chroma from China Taiwan, as well as Everfine from China. International standard of ISO/IEC 17025 is applied for lab management, which put us to the leading position in domestic China in aspect of technical capacity, testing method, quality control, process monitoring, etc. We have become a team member to edit and amend the National compulsory standard of GB 17743-201X , as well as a team member in a National technical committee of .

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  • Optical Laboratory

    Generally Luminosity Distribution refers to the luminous intensity spatial distribution in different directions made by lamps or illuminant. Luminosity Distribution Test (also named light-matched test) was mainly taken by distributed photometer. Luminosity Distribution Laboratory is equipped with a built- in 10 ㎡ darkroom and a set of high – precise photometric distribution meter system(EVERFINE), which could be used to doing relevant optic test including the total luminous flux of lamps, luminous intensity distribution curve, iso - illuminance curve, luminous intensity date, beam angle, regional luminaire efficiency, luminous flux, utilization factor, luminaire limitation curve, glare degree, the effective average illumination curve, color spatial uniformity, the average color date, etc. The operation system fulfills both the international standards CIT 121 and GB/T 9468< General Requirementsfor the photometry and goniophotometry of luminaries >. The method of measuring luminous flux with light- distribution photometer in international has been deemed as the primary method of luminous flux measurement.

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  • EMC test lab

    EMC is defined as the ability of devices and systems to operate in their electromagnetic environment without impairing their functions and without faults and does not influence the electromagnetic environment to the extent that the functions of other devices and systems are adversely affected. Usually EMC includes requirements of two aspects: The EMI (Electro Magnetic Interference) refer to the generation of unwanted electromagnetic energy to the environment under the devices and systems’ normal operation. These need to be reduced below certain acceptable limits to ensure they do not cause any disruption to other equipment. The other aspect is EMS (Electro Magnetic Susceptibility), refer to the immunity of the devices and systems to the interference in the electromagnetic environment. When working on the product solution, we always consider the structural shielding to the whole system, filtering of the driver and signal interface, grounding, etc. Hardware design: driver interface, signal interface, type of cable , interface design, type of connector, type of protecting components, etc. Circuit schematic design: internal master chip, crystal oscillator, filtering for clock-driven circuit, isolation for digital circuit and artificial circuit module; PCB layer design, circuit layout , key component layout, connection design for the shielding items, the matching design between the interface connector and product structure. EMC test chamber includes a electromagnetic shielding room sized 7M*4M*3M for EMS and EMI testing. Rohde & Schwarz test devices from Germany are introduced into the lab for EMI test, test can be operated according to the standards of GB 17743、GB 18595、IEC/EN 61000-3-2、IEC/EN 61000-3-3、IEC/EN 55015、IEC/EN 61547、CISPR15、CISPR16, which complies with the related certification and test requirements for China, EU,IEC, etc.

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  • Optical Laboratory

    Optical Laboratory The Optical Laboratory main purpose is to test the optical performance of LED lamps with built-in integrating sphere testing system (EVERFINE Brand), all the instruments can be traced back to National Institute of Metrology (NIM). Ø The basic test functions: Relative spectral power distributions, chromaticity coordinate, dominant wavelength, peak wave length, spectral purity, CCT(Correlated Color Temperature), color rendering index(CRI), half width, luminous flux, radiant power, red ratio, Color Tolerance Adjustment(SDCM),etc. parameters, the whole system can meet Light and color measurement requirements from international commission on illumination(CIE),and it also can meet criterion GB/T 24824《ordinary lighting LED module test methods》, IES LM-79 ,and the color rendering can be tested according to the latest international evaluation methods IES TM-30-15 . Main Equipment includes: Japanese Humamatsu science grade CCD-array detector and flat-field holographic concave grating spectral analysis system imported from Europe with millisecond test speed and scientific degree of accuracy. Bandpass color correction technology, NIST stray-light correction technique has very low stray light levels 5E-05, with high repeatability capability and stability. High reflectivity integrating sphere: Φ2.0m, lateral opening, good diffuse in reflection properties and with the distance SPEKTRON special coating process, the reflectance at 380nm ~ 780nm can be up to 98%, compliant with international standards. Intelligent DC stabilized power supply: DC voltage or constant current output, with four and a half digital ammeter, voltmeter, source table integration and with the possibility for remote controlling. Intelligent AC test dedicated power supply Strong applicability; it can be used as a special power supply for harmonic testing, and has the protection functions against short circuit, over current, over voltage, over heat and so on. High precision digital power meter: Multifunctional, AC and DC type, basic accuracy of 0.15, with harmonic analysis function, exponential mean, arithmetic mean, integral, variable ratio and other functions. Standard light source: Total radiant flux standard source, the spectrum can be traceable to the National Institute of Standards and Technology,NIST. Very small chance of error, degree of uncertainty is also low, highly stable, direct measurements provided by National Institute of metrology NIM, Furthermore luminous flux can also be traced to China Institute of metrology.

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