On May 8, 2026, Yoha Solar shipped the self-developed Solar Panel EL+AOI Appearance Tester (YH-EL12) for overseas deployment. The equipment has been successfully integrated into an overseas fully automatic PV module production line. This shipment marks the international recognition of Yoha Solar’s intelligent PV inspection equipment, further expanding its global business footprint and consolidating quality assurance for overseas PV manufacturers.
Solar Panel EL+AOI Appearance Tester (YH-EL12)
The global photovoltaic industry continues to expand, and double-glass PV modules have become mainstream products due to their high stability and long service life. Overseas PV manufacturing features stringent automated and intelligent production standards, generating strong demand for integrated inspection equipment that detects both internal and surface module defects. Targeting critical pain points in PV quality inspection, Yoha Solar developed this high-precision integrated tester to perfectly match the production tact time and inspection criteria of overseas automatic production lines.
The YH-EL12 boasts excellent comprehensive performance, adopting mature dual-mode synchronous detection technology to simultaneously identify internal and surface defects without blind detection zones. In terms of hardware configuration, it adopts a 12-camera imaging system with professional industrial cameras. The EL detection resolution reaches 60 million pixels, while the dual appearance inspection resolution is up to 240 million pixels. Featuring outstanding detection sensitivity, the equipment can precisely identify microcracks narrower than 0.03mm.
High-definition imaging accurately detects internal/external defects of PV modules
For production compatibility, this tester is applicable to monocrystalline and polycrystalline double-glass modules for full-process detection before and after lamination, with an effective detection area of 2600×1500mm. Equipped with automatic control technology, it supports automatic loading and unloading. The image acquisition time ranges from 100ms to 700ms, realizing millisecond-level single-module inspection. Seamlessly compatible with automated production lines, it requires minimal manual intervention to ensure smooth and efficient production workflows.
In terms of intelligent optimization, the equipment incorporates AI vision algorithms and deep learning models to accurately identify various defects under complex production backgrounds, effectively reducing misjudgment and omission rates. Furthermore, it supports connection with MES (Manufacturing Execution System) and automatically generates inspection reports containing defect location, size and imaging data. It enables full traceability of production data and provides accurate data support for process optimization and quality control in overseas factories.
Adhering to a quality-oriented manufacturing philosophy, Yoha Solar implements strict control over the entire equipment production process and consolidates core competitiveness with reliable product quality and stable equipment performance. Meanwhile, the company has established a comprehensive after-sales service system worldwide, providing one-stop customized services including equipment installation, commissioning, technical training and operation maintenance. With high-quality products and efficient after-sales support, Yoha Solar has gained high recognition and consistent praise from global PV manufacturers, building a solid industry reputation and high-quality customer resources.
Specializing in the PV inspection industry, Yoha Solar prioritizes technological innovation and focuses on developing high-precision, highly adaptable and intelligent PV testing equipment. This overseas shipment constitutes a crucial step in the company’s international layout, demonstrating the robust strength of domestic PV inspection equipment. In the future, Yoha Solar will continuously upgrade product technology and optimize equipment performance. By further exploring global PV markets, the company will consistently empower the high-quality and standardized development of the global photovoltaic industry.