Which Quality Certifications Validate Skyworth's SCOB LED Products?

SCOB-Specific LED Module Standards and Performance Validation

Why Specialized Certification Criteria Are Required for SCOB Architecture

SCOB (Surface-Mounted Chip-on-Board) architecture can fit a large number of tiny semiconductor die LED chips on a single substrate, causing very specific challenges in managing thermals, achieving photometric uniformity, and ensuring long-term reliability. Standard LED module testing can ignore high-stress areas in SCOB designs, such as thermal hotspots or low uniformity in color across the emitting surface. Some of these specialized testing criteria demand additional photometric mapping so that uniformity of luminous flux and color across the surface is checked, as well as accelerated thermal cycling that simulates operational thermal extremes. Through these testing methodologies, a SCOB module can look good in isolation, yet may have issues with significant change in flux and color once it is installed in an actual lighting assembly. It is for this reason that IEC/EN 62722 and EN 62504 have been created. They aim to capture the unique electrical, thermal, and optical behaviors associated with SCOB architecture-based lighting products.

IEC/EN 62722 & EN 62504: The Core SCOB Module Standards for Photometric and Electrical Integrity

Performance requirements for LED lighting (including those with SCOB modules) are outlined in IEC/EN 62722. Meanwhile, EN 62504 (in parallel with EN 62717) sets the fundamentals for safety, efficiency, and photometric performance of LED light sources. Regarding SCOB, luminaire manufacturers need to provide information on rated power, total flux and color consistency under ambient conditions of 25°C and a stable thermal state. Power factor, total harmonic distortion, and transient overvoltage (to protect SMPS against driver induced overvoltage) need to be assessed in terms of safety and stability. Compliance with both standards provides integration partners with reliable information for thermal, optical, and life span assessments, without the need to rely on extrapolated/generic LED packages.

Photobiological Safety (IEC/EN 62471) and Thermal Reliability Testing for SCOB Modules

SCOB's blue-light hazard means compliance with IEC/EN 62471 is obligatory. The dense SCOB array luminances raise the risk of blue light hazard to the retina, particularly in regard to IEC/EN 62471 compliance. This standard determines the operational risk group (Exempt to RG3) of a product based on its spectral radiance and irradiance. Passing the Exempt or RG1 classification when evaluating SCOB modules confirms safe operation for normal and foreseeable potentially hazardous use, including misuse. Thermal reliability must also be considered. Since the heat flux from SCOBs can reach 100 W/cm², failure can be rapid and catastrophic if the junction temperature exceeds the recommended limit. Thermal imaging when the system is in a steady state during a life-cycle evaluation as per IEC 62722 Annex D confirms the assimilation of the module's thermal interface, substrate, and heatsink enables the safe operational limit of the junction temperature over the rated hours of use.

Global Safety Certifications Required for SCOB Lighting Systems

UL 8750 and UL 1598: Compliance Pathways for SCOB Drivers and Integrated Luminaires

UL 8750 is the primary safety standard for LED devices—including SCOB modules and their drivers—related to insulation, creepage/clearance, fault current, and thermal cutoffs. UL 1598 employs a unified standard for luminaires, proving integrity of the assembly, the enclosure’s rating, and thermal conditions during operation at full load and during fault conditions. For SCOB-based luminaires in North America, compliance to both of these standards is necessary. UL 8750 covers the safety at the driver, while UL 1598 covers the safety and robustness of the system, which is even more critical with the compact thermal layout and high power SCOB’s. Testing involved dielectric withstand (2,500 V AC), thermal cycling (−40°C to +85°C, 500 cycles), and simulated faults such as open-circuit LED strings or shorted capacitors.

ETL Listing and CE Marking Considered Equivalently and Their Impact on SCOB Market Access

The ETL Listed Mark that is provided by Intertek includes a safety guarantee that is equivalent to that of UL, and is commonly accepted in North America. For SCOB manufacturers, it provides a path with a similar level of technical detail, including factory assessments and surveillance sampling. CE marking is still required for access to the European Economic Area (EEA), and signifies compliance with the Low Voltage Directive (2014/35/EU), EMC Directive (2014/30/EU), and RoHS (2011/65/EU). Although CE compliance is self-declared, it necessitates a technically justified EU Declaration of Conformity, supported by test reports from recognized laboratories. The combination of ETL + CE marking is becoming standard for global SCOB suppliers—this combination avoids redundant testing, provides rapid market access, and meets the requirements of customs in the described economic areas, without a compromise in technical substantiation.

Specific Regulatory Requirements for Skyworth SCOB Deployments

EU Compliance: CE, RoHS, and ERP Directives for SCOB Energy Efficiency and Environmental Safety

SCOB products, in addition to standard safety requirements, must comply with three interconnected directives upon entering the EU. CE marking pertains to low-voltage safety and electromagnetic compatibility. RoHS prohibits the use of ten hazardous materials, including lead and solder and mercury in phosphors, which requires that companies declare the materials and ensure supply-chain traceability to the level of components. The Energy-related Products (ErP) Directive (EU No. 1194/2012) sets limits on efficacy and standby power. Specifically, SCOB-based luminaires must reach requirements of ≥ 100 lm/W (directional) and ≥ 90 lm/W (non-directional), with a maximum standby power of 0.5 W. It is key to note that the ErP evaluates compliance at the luminaire level, meaning that SCOB’s chip-on-board architecture, while having luminaires’ high efficiency, must be viewed with optical and thermal configurations, and not as a bare module. Manufacturers are required to keep a complete technical file, provide the EU Declaration of Conformity, and place the CE mark on their products before allowing them to be sold in the marketplace.

North America: Control of EMI and ENERGY STAR Applicability for SCOB-Based Fixtures

In the U.S. and Canada, SCOB luminaires are expected to confirm to FCC Part 15B as unintentional radiators, which cover both conducted emissions (0.15-30 MHz) and radiated emissions (30-1000 MHz). Due to the high-frequency switching drivers and compact PCB design in SCOB, compliance is best done with a combination of design optimation and ferrite suppression with shielding. Even without the requirements, having a product that qualifies for the ENERGY STAR is more favorable in the market as it has a minimum of 110 lm/W, a power factor of 0.9 at maximum load, and a color shift of less than 0.006. Because of SCOB's design, there are no gaps in the inter-LED system and can allow for better control of the LEDs. Because of this, SCOB is an appropriate choice for making ENERGY STAR certified troffers, downlights and high-bay fixtures.

Asia-Pacific requirements: SCOB-based product registration under CCC (China), PSE (Japan), and BIS (India)

All the major Asia-Pacific markets require that national certifications be met which each have different technical and procedural requirements. In China, SCOB modules and drivers have to go through CCC with testing to GB 7000.1 (safety), GB/T 24823 (photometry), and GB 17625.1 (EMC). In Japan, the PSE “diamond” mark for specific lighting products means that SCOB luminaires undergo a 3rd party evaluation to JIS C 8105-1 for insulation, dielectric, and surge protection. On the other hand, India's BIS registration signifies compliance with IS 10322 (Part 2/Sec 3) with dust and thermal endurance (1,000 hour burn-in at 85°C), and a factory inspection. This means that SCOB luminaires have to go through some rigid tests to prove they can withstand the high levels of dust and heat, which can be expected from the Indian environment. On top of all this, all three certifications require the customer to have a local representative and have to be renewed in 1 to 3 years depending on the findings from the audits.

What are SCOB modules?

Designed for high-density lighting applications, SCOB (Surface-Mounted Chip-on-Board) modules integrate multiple LED chips on a single substrate, advancing LED architecture.

Why do SCOB modules require specialized certification standards?

Through challenges like thermal hotspots, highly photometric bright spots, and high luminance SCOB modules require safety and performance evaluation.

Which global standards apply specifically to SCOB lighting systems?

Relevant standards include IEC/EN 62722, EN 62504, UL 8750, UL 1598, CE marking, FCC Part 15B and various regional certifications, like CCC, PSE and BIS.

What is the importance of IEC/EN 62471 compliance?

Retinal blue light hazard is a concern with dense SCOB arrays, and IEC/EN 62471 is a standard to address photobiological safety.

How do SCOB modules achieve ENERGY STAR certification?

SCOB modules are compliant with the requirements due to their high efficacy (≥110 lm/W), color stability and high power factor which contribute to their reliability and energy performance.