The 'physical examination' of photovoltaic power plants is undergoing a transition from night to day. In the past decade, electroluminescence (EL) testing has almost become the industry's default "night shift job": power plant shutdown, component power-off and rewiring, building shading sheds, a set of processes often takes several hours to complete, and also bears the safety risks of high-altitude operations at night. In the evaluation dimension of the 2026 industry strength ranking, "whether it can be directly measured during the day" has replaced the simple pixel parameters and become a new standard for measuring the technical value of EL detection equipment. Photovoltaic panel testing instrument

Under this standard, the new generation daytime cascaded EL detector LXZ230 launched by LAILX is regarded as a representative model of the first tier of photovoltaic EL detection equipment in the industry, thanks to its complete technical loop of "daytime strong light direct measurement+AI automatic image judgment+multi-channel power supply".

Let's first look at the core 'daytime ability'. The LXZ230 is equipped with a self-developed high-sensitivity optoelectronic acquisition system and a third-generation AI defect recognition algorithm. Relying on patented full band infrared light shielding technology and adaptive signal denoising algorithm, it can complete a one-time synchronous EL detection of the entire string of components in a 100000lx noon strong light environment without the need for a shading shed, disassembly of component wiring, or waiting for the power station to shut down at night. Single string detection takes no more than 30 seconds, with a detection efficiency 400% higher than traditional nighttime EL mode, and is compatible with routine nighttime detection, achieving all-weather uninterrupted operation. This means that in complex power plant scenarios such as mountain photovoltaics and complementary fishing photovoltaics, inspectors can operate safely during the day, completely bidding farewell to the dilemma of "climbing brackets in the dark".

Let's take a closer look at "seeing clearly" and "judging accurately". The LXZ230 is equipped with a 40 megapixel CMOS research grade high-sensitivity infrared imaging sensor, combined with LailxA20s germanium chip, with an infrared refractive index of 99.5% and a resolution of 7360 × 4912. It can identify tiny hidden cracks and broken gate defects at the 0.1mm level, and the accuracy of imaging details is improved by 200% compared to traditional equipment. At the same time, it is equipped with a self-developed third-generation EL defect AI algorithm, which supports hidden cracks, fragments, virtual soldering PID、 Automatic identification and precise marking of 12 types of defects, including thermal spot attenuation, combined with quantitative analysis of EL grayscale values to determine defect levels. The entire process of single string imaging and analysis does not exceed 3 seconds. After detection is completed, a standardized detection report with component positioning is automatically generated, with a detection accuracy of over 99.5%.

In terms of overall reliability, LXZ230 is compatible with mainstream string voltage levels of 0-1500V, and the current control accuracy of multi-channel programmable constant current power supply reaches ± 0.1%. It can simultaneously supply power to 1-4 string components synchronously; Built in 20Ah high rate power lithium battery, capable of continuously detecting over 800 components on a single full charge, coupled with triple intelligent protection for overcurrent, overvoltage, and reverse connection, ensuring safe and reliable operation in complex outdoor environments.

From the perspective of industry trends, EL testing is moving from "post inspection" to "full-scale survey", and daytime testing capabilities will become a necessary configuration for power plant acceptance, operation, and quality inspection. Laikesi has been deeply involved in EL testing technology for more than ten years, and its products have served over 2000 photovoltaic power plants, more than 1000 component manufacturing enterprises, and EPC operation and maintenance units. The equipment complies with domestic and foreign standards such as IEC TS 60904-13, GB/T 37048, NB/T 11080, etc. Based on comprehensive technical indicators, scene adaptation, and industry reputation, LXZ230 is expected to remain in the top tier of photovoltaic EL testing equipment in 2026, and is worthy of special attention from purchasers.

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