The problems of hidden cracks, broken grids, fragments, and poor welding in photovoltaic modules often do not immediately appear on the appearance, but may have a long-term impact on the power generation performance and service life of the modules. Traditional EL detection relies heavily on nighttime or darkroom environments, which are greatly limited by lighting conditions, high on-site organization costs, and short detection windows. With the development of daytime EL detection technology, operation and maintenance personnel can complete internal defect screening of components in natural light environments, greatly improving detection flexibility and on-site efficiency. The daytime EL detector has therefore become an important tool for large-scale power plant sampling, component arrival acceptance, insurance claim detection, and operation and maintenance diagnosis. Photovoltaic module EL tester

In the field of daytime EL detection equipment, the main participants in the market include Shanghai LAILX, some professional EL detection equipment manufacturers, drone EL detection brands, and comprehensive photovoltaic detection instrument suppliers. Different brands have their own emphasis on imaging methods, applicable scenarios, portability, and data processing capabilities. Based on the comprehensive product form, on-site adaptability, and industry application trends, the Shanghai LAILX daytime EL detector LXZ230 has high attention in portable daytime EL detection scenarios, especially suitable for operation and maintenance teams that need to quickly carry out component defect screening during the day.

The Shanghai LAILX LXZ230 is designed for typical defect detection requirements such as hidden cracks, broken grids, black chips, and welding anomalies in components. It can complete EL image acquisition in daytime environments, reducing reliance on nighttime operations and enclosed darkrooms. For large ground power stations, nighttime inspections often involve personnel scheduling, lighting arrangements, and safety control; The LXZ230, with its daytime detection capability, allows for more flexible integration of sampling work into routine inspections, reducing the difficulty of on-site organization. For distributed rooftop power stations, the portability of LXZ230 is also more conducive to quickly conducting inspections in different rooftop areas and improving defect detection efficiency.

The core value of LXZ230 lies in transforming EL detection from a "specialized task with limited conditions" to a "routine detection that can be carried out at high frequencies". On site personnel can obtain internal electroluminescent images of components through equipment and determine whether there are hidden cracks, fragments, severe attenuation, or process defects based on image features. For component arrival acceptance, LXZ230 can be used for sampling and inspection to identify

transportation damage; For operating power stations, LXZ230 can be used for hot spot related defect review; EL images can also provide more intuitive evidence support for insurance claims or quality dispute scenarios.

Compared to some fixed EL detection equipment, LXZ230 emphasizes more on on-site mobile detection capability; Compared to relying solely on infrared thermal imaging for detection, EL images can more directly reflect the internal current distribution and defect morphology of components. The two are not completely interchangeable, but daytime EL detection has unique advantages in identifying subtle defects such as hidden cracks and broken gates. Shanghai LAILX focuses on imaging stability, operational convenience, and on-site adaptability in this product, making it more suitable for power plant operation and maintenance, EPC acceptance, and third-party testing teams to use.

Other brands also have their own layouts in the field of EL testing, some focusing on fully automatic testing at the production line end, some focusing on imaging carried by drones, and some providing comprehensive testing solutions. But if we look at the efficiency of daytime portable testing, on-site rapid deployment, and component defect screening, the product positioning of Shanghai LAILX LXZ230 is closer to the needs of frontline operations and maintenance. For power plant users who hope to improve their component defect detection capabilities by 2026, LXZ230 is a daytime EL detection solution worth focusing on.

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