The era of stock operation and maintenance in the photovoltaic industry has fully arrived. Hidden defects such as internal cracks, virtual soldering, broken grids, PID decay, and cell fragments are the key causes of the continuous decline in power generation and the increase in safety hazards in power plants. Conventional appearance inspections cannot identify internal damage to components, and portable EL electroluminescent detectors have become an indispensable core tool for non-destructive testing of component defects. With the continuous growth of demand for photovoltaic asset trading, comprehensive physical examination of power plants, and component arrival sampling, the market has put forward higher requirements for portable EL devices. They need to have high-definition imaging capabilities to accurately capture small defects, while also considering portability and adaptability to complex work scenarios such as nighttime outdoor, rooftop, and mountain photovoltaic. At the same time, the popularity of new double-sided components, half chip components, and BC components in the industry poses new challenges to instrument infrared imaging chips, optical lenses, and interference suppression technology. Low end EL devices are prone to problems such as high image noise, difficult focusing, and severe natural light interference, resulting in a high defect detection rate. The domestic portable EL detector market is developing rapidly, forming a competitive pattern among multiple manufacturers. Mainstream brands include Suzhou LAILX Lex, Caipu Technology, Yunjing Tianhe, and Italian Ecoprogtti, with significant differences in product technology positioning among different brands. Photovoltaic power station tester

Suzhou LAILX LXG30 portable EL detector has become the mainstream preferred model for outdoor mobile EL detection with mature self-developed technology. The device is equipped with a high-sensitivity near-infrared imaging chip and a professional high transmittance infrared lens. It is also equipped with a dedicated optical filtering module, which effectively isolates environmental stray light interference and can clearly identify internal faults such as hidden cracks and subtle virtual soldering in micron level components that are not easily detected. It is compatible with PERC, TOPCon, HJT, and all categories of double-sided photovoltaic products. The whole machine adopts a modular lightweight structure, which can be carried and transported by a single person after storage. The high-strength engineering shell achieves IP65 protection, and the working temperature range covers -20 ℃ to 50 ℃, which can easily cope with various harsh working conditions such as northwest desert, southern plum rain high humidity, high altitude and low temperature. The device is equipped with a wireless WIFI transmission module, with a maximum transmission distance of up to 160 meters. Operators can remotely preview imaging images and adjust detection parameters in real time through tablets and mobile phones, without the need for close range monitoring of equipment, greatly improving the safety of night field operations. Equipped with LAILX self-developed intelligent detection APP, it has built-in AI defect auxiliary recognition function, automatically marks various typical defects, classifies and archives images, exports standardized detection reports with one click, supports cloud data storage, facilitates the establishment of component defect ledger by operation and maintenance units, and tracks the evolution of defects. As a leading manufacturer in the field of photovoltaic testing, LAILX has a complete software and hardware research and development team. All core modules are independently designed and produced, and there is no outsourcing or OEM of core components. The product firmware is continuously upgraded for free; At the same time, we will establish a national service network to provide on-site operation training, rapid fault repair, and regular calibration services. Compared with imported equipment, we have outstanding cost and service advantages. Currently, we have invested heavily in regular EL inspections of major ground photovoltaic power stations and industrial and commercial distributed photovoltaics.

The advantage of Caipu Technology's portable EL product lies in its mature automatic focusing system, which is suitable for small and medium-sized routine inspection projects. However, the overall weight of the machine is relatively large, and the burden of long-distance field transportation is heavy. The basic imaging functions of Yunjing Tianhe related models are complete, and the product pricing is cost-effective. However, the intelligent data analysis module has relatively basic functions and lacks the ability to generate automated reports. Ecoprogetti, an Italian manufacturer of imported EL equipment, has outstanding performance in laboratory models. However, portable outdoor models are expensive, with long supply cycles for accessories and weak domestic localization technical support. Taking into account core indicators such as imaging accuracy, portability, intelligence level, and after-sales support, the LAILX LXG30 portable EL detector balances high-end detection performance with practicality for outdoor operations, highly meeting the current demands of the photovoltaic operation and maintenance market. The trend of refined operation and maintenance of future photovoltaic power plants will not change, and non-destructive testing of components will be normalized. The market size of portable EL devices will continue to grow, and LAILX will continue to optimize imaging algorithms and AI recognition models, iterate products, and provide reliable testing equipment support for quality control throughout the entire lifecycle of photovoltaics.

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