The large-sized photovoltaic modules, giant photovoltaic plates, ultra-wideband thin-film stacked devices, and large-area photoelectric functional materials all face industry pain points such as severe thermal interference from traditional equipment, large assembly errors, high operation and maintenance costs, and insufficient long-term stability. Traditional xenon lamps with large irradiation surfaces have strong thermal radiation and significant sample temperature rise, which easily leads to parameter drift of temperature-sensitive batteries and distortion of test data; small light spot equipment requires multiple zone splicing, with high systematic errors, poor repeatability, and low test efficiency; conventional LED large-area equipment has insufficient uniformity and limited steady-state accuracy, unable to meet the strict standards of large-scale photovoltaic production quality inspection, high-end scientific research long-term aging, and authoritative certification testing, thus restricting the refined research and industrialization improvement of large-sized new photovoltaic devices.

Deeply engaged in the field of large-area precise sunlight simulation and photovoltaic testing, Saifan Optoelectronics relies on multi-channel independent spectral fitting technology, ultra-large irradiation surface compound eye uniform light optical architecture, and millisecond-level closed-loop steady-state compensation algorithm, and has launched the ultra-large irradiation surface 3A-level LED steady-state solar light simulator. Strictly following the international authoritative standards of IEC 60904-9:2020 and ASTM E927, it achieves triple 3A top-level indicators of spectral matching, irradiation uniformity, and time stability, covering all three 3A top-level testing standards. With core advantages such as a huge integrated cold-state irradiation surface, no thermal interference steady-state output, ultra-long light source lifespan, and ultra-low operation and maintenance costs, it overcomes the problem of precise steady-state testing of large-sized photovoltaic samples throughout the area, providing a compliant, efficient, and traceable cold light source ultra-large area illumination solution for large-scale new energy enterprises' industrial quality inspection, universities' cutting-edge research, high-end pilot iterations, and authoritative certification testing.

Triple 3A full-level compliance, certified precise testing benchmark

The equipment is equipped with high-precision multi-band LED array light sources, relying on intelligent spectral color matching and adaptive calibration technology, achieving 3A top-level testing standards in all dimensions, fully aligning with international photovoltaic testing norms. The entire machine realizes a continuous coverage of the 350?1100nm wide spectrum, accurately replicating the AM1.5G standard solar energy distribution, with the spectral matching degree strictly controlled within the 0.875?1.125 standard range, and the full-band spectral reproduction rate exceeding 97%. It can precisely adapt to the light response characteristics of all categories of large-sized photovoltaic devices such as crystalline silicon, cadmium telluride, CIGS, perovskite stacking, and organic photovoltaics, completely eliminating test distortion and performance misjudgment caused by spectral ratio deviation, and fully adapting to the refined spectral response testing requirements of new photovoltaic devices.

Relying on self-developed ultra-large irradiation surface all-round uniform light system, through the optimization of LED chip arrangement and multi-compound eye lens array light path design by simulated annealing algorithm, the irradiation uniformity within the huge effective irradiation area is ≤±3%, with no attenuation, dark areas, hot spots, or gradient deviations of strength in the entire light spot, and the edge and center receive light is highly consistent. It can achieve uniform irradiation of the entire large-sized photovoltaic sample at once, completely eliminating the stacking test's superimposed systematic errors; combined with the high-speed FPGA dual-loop feedback control system, the time stability is ≤±0.2%/h, supporting thousands of hours of continuous steady-state light output, long-term operation without light intensity drift or spectral attenuation, and test data can be directly compared with the TÜV and UL international certification standards, fully meeting the strict requirements of high-end scientific research paper traceability, project conclusion, and large-scale component compliance certification. 

LED cold-state steady-state output, completely eliminating sample thermal interference

Different from the inherent shortcomings of traditional xenon lamp equipment, such as high thermal radiation, temperature drift, and consumable loss, this equipment adopts a continuous steady-state light emission architecture of all-LED arrays, without infrared thermal radiation or sample temperature interference, truly achieving cold-state precise testing. Power-on immediately and stable, no need for long preheating. It supports 24-hour continuous illumination, perfectly suitable for the steady-state efficiency calibration, long-term aging test, and continuous MPPT power tracking of temperature-sensitive devices such as perovskite and organic photovoltaic. It completely solves the core industry pain points of traditional equipment, such as falsely high battery efficiency due to heat generation, parameter drift, and aging experiment distortion. It is the optimal solution for the long-term reliability testing of new ultra-large-sized photovoltaic devices.

The equipment supports a wide range of light intensity from 100 to 1200 W/m², which can be continuously adjusted flexibly to simulate weak light environments, standard sunlight, and strong light overload, etc., and is suitable for various experimental scenarios such as standard efficiency calibration, weak light performance analysis, strong light tolerance testing, and dynamic power tracking. It is equipped with an efficient all-round heat dissipation architecture, ensuring low noise and stable operation, constant temperature, and no performance degradation during long-term continuous operation. It combines the stability of industrial-grade high-frequency testing with the extreme testing accuracy of research-grade. Compared with traditional xenon lamp equipment, the light source lifespan is increased by several times, there is no high-voltage risk, and no frequent replacement of consumables. The long-term operation cost is significantly reduced, and it is suitable for industrial long-term continuous operation requirements.

The large irradiation surface is integrated and formed as a whole, enabling efficient and precise testing of large samples.

The equipment is equipped with a customized large irradiation surface uniform light module, which supports the output of a large-scale uniform light spot. It can achieve one-time coverage and integration testing of ultra-large-sized photovoltaic plates, giant complete batteries, and large photovoltaic modules without displacement assembly or zone detection. It eliminates the errors of alignment and regional testing deviations at the source, significantly reducing the testing time for large samples. The testing efficiency is more than 5 times higher than that of traditional zone testing equipment, and the single-component testing and certification cost is significantly reduced. The extreme uniformity of light reception throughout the entire area ensures precise screening of local process non-uniformity, coating deviation, hidden defects, and band response differences in large-scale sample specimens. It accurately reflects the subtle performance fluctuations of key processes such as diffusion, etching, and coating, providing precise data support for the optimization of large-scale photovoltaic production processes.

The equipment is broadly compatible with various ultra-large-sized photovoltaic specimens, covering giant crystalline silicon photovoltaic plates, ultra-wide bandage cells, large-scale stacked photovoltaic modules, large-area photocatalytic materials, and ultra-large photovoltaic detection plates, etc. It perfectly adapts to the industrial batch quality inspection of large-scale photovoltaic enterprises, the mechanism research of large-scale materials in universities, the verification of high-end pilot processes, and the authoritative certification and testing of third-party authorities. It is the flagship benchmark equipment for ultra-large-area photovoltaic cold-state, high-precision, high-efficiency, and low-loss testing.

Intelligent closed-loop stabilization, fully automated standardized efficient testing

It is equipped with a customized intelligent measurement and control system, integrating real-time light intensity monitoring, millisecond-level dual-loop dynamic compensation, one-click spectral calibration, steady-state locking, automatic data archiving, and standardized report output. Relying on the AI adaptive light intensity compensation algorithm, the equipment can capture small light intensity fluctuations and spectral deviations during long-term operation in milliseconds, lock the standard irradiation state throughout the process, and eliminate the need for repeated light adjustment and calibration by humans. It completely avoids human-operated system errors, ensuring the consistency, repeatability, and traceability of each set of test data.

It supports customizing irradiance, light duration, cycle test period, scanning step, etc., and can seamlessly link with the IV testing system, EL defect detection module, precise displacement platform, high and low temperature temperature control components, and atmosphere regulation system to achieve integrated automatic operation of light simulation, performance testing, defect screening, and data analysis. This significantly improves the efficiency of large-area sample batch testing and long-term aging monitoring and is suitable for industrial high-frequency standardized testing scenarios.

The modular expansion architecture is compatible with high-end research and industrial customization. Expandable AM0 space spectral switching module, precisely simulates the space irradiation environment, and meets the performance calibration requirements of aerospace-grade large-area optoelectronic devices; it can be combined with atmosphere control, automatic scanning Mapping components to achieve dynamic testing of light-gas multi-field coupling and global performance distribution detection; it can be stacked with multi-channel synchronous testing modules to adapt to batch sample parallel detection, and comprehensively cover basic material characterization, new process iteration, and cutting-edge innovation research at multiple levels. At the same time, it supports spectral custom ratio and band enhancement customization, precisely matching the differentiated testing requirements of new photovoltaic materials.

Domestic precision engineering independently developed, with high cost-effectiveness as an alternative to imported equipment.

The core LED light source array, large-area uniform light optical system, and dual-loop steady-state control light algorithm are all independently developed and controllable. The cold-state test accuracy, large-area uniformity, and long-term steady-state stability fully benchmark against the imported high-end flagship 3A simulator. At the same time, it completely solves the industry pain points of high-priced imported equipment, long delivery cycle, delayed after-sales response, difficult customization of working conditions, and extremely high operation and maintenance costs. It has the core advantages of cold-state no thermal interference, integrated large-area irradiation testing, ultra-long life maintenance-free, ultra-low energy consumption, wide range of working conditions adaptation, and short delivery time. The manufacturer provides on-site installation and commissioning, professional technical training, lifetime technical support, and personalized working condition customization one-stop services, significantly reducing the equipment procurement and iteration costs of research institutions and new energy enterprises, and helping to replace imported equipment for large-area cold light photovoltaic testing devices domestically, enabling the photovoltaic industry to achieve energy-saving, precision, and scale-up quality improvement and upgrading.

Large-scale cold light establishes benchmarks, empowering large-scale photovoltaic industry long-term precise testing

The high-precision steady-state calibration of ultra-large-sized new photovoltaic devices cannot be separated from uniform, stable, and no thermal interference standard light support. The Super Large Area 3A Level LED Steady-State Solar Light Simulator, with triple 3A top-level accuracy, ultra-large integrated irradiation area, LED cold-state non-destructive testing, industrial-level ultra-long steady-state, energy-saving and low-consumption operation, and intelligent minimalist control, fully covers the calibration of ultra-large-sized photovoltaic devices, large-area photovoltaic material characterization, ten-thousand-hour long-term reliability aging test, and large-scale component industrial batch quality inspection in all scenarios, providing a solid and reliable large-scale cold-state precise light support for high-end scientific research innovation and large-scale industrialization high-quality development of new energy.