Product Specification

Solar Cell EL Tester

Our state-of-the-art High Performance-price Ratio Manual Solar Cell EL Tester is engineered for modern Solar Panel Production Line applications. This advanced Manual EL Tester functions as an all-in-one Solar Cell Tester and EL Sorting Integrated Machine, ensuring that every solar panel is thoroughly inspected for material and workmanship defects.

Technical Features:
The system utilizes a highly sensitive infrared camera that is capable of detecting even the slightest defects in solar cells. This feature helps users quickly identify issues such as cracks, blemishes, or other anomalies during production. Integrated within our Manual EL Tester, the specialized optical imaging system and high-sensitivity camera module provide detailed imaging that supports both the Solar Cell Tester and the EL Sorting Integrated Machine functions. These capabilities make it an essential tool in any Solar Panel Production Line where quality and reliability are paramount.

Technical Data:

• Resolution: The unit is equipped with a 2560×1920 Megapixels infrared industrial CCD camera, delivering crisp and accurate images for the High Performance-price Ratio Manual Solar Cell EL Tester.
• Shooting Mode: It operates in a single camera mode to streamline the testing process as a dedicated Manual EL Tester.
• Sensitivity: With a sensitivity of 0.4 mm/pixel, it captures minute details essential for a top-tier Solar Cell Tester.
• Effective Test Area: The tester covers an area of 220×220 mm, which is ideal for routine inspections in a Solar Panel Production Line.
• Image Acquisition Time: Adjustable between 1 to 60 seconds, allowing flexibility based on production needs.

The equipment demonstrates outstanding image uniformity, repeatability, and security tests. It achieves over 98% accuracy in identifying general defects (including busbar breakages when tested 10 pieces, 10 times). Additionally, the fragment rate is 0% under system test sampling specifications and remains ≤0.05% under normal testing conditions. The pressing pin scratch test, conducted 100 times per piece on non-main grid areas, confirms a scratch rate of 0%, ensuring that fragments, cracks, black spots, and scratches are reliably detected as abnormal.

Operating under a wide working temperature range of –10℃ to 40℃ with an SNR above 56 dB and humidity levels between 20% and 70%, this High Performance-price Ratio Manual Solar Cell EL Tester offers the precision and durability required for efficient and consistent performance in any Solar Panel Production Line. Its design as a Manual EL Tester and Solar Cell Tester combined with the integrated functions of an EL Sorting Integrated Machine makes it the perfect solution for manufacturers seeking excellence in solar cell quality control.

Our Services:



About Us:

Yoha Solar is a high-tech enterprise dedicated to the research, development, manufacturing, sales, and after-sales service of serial photoelectric automation equipment.
15+ Years Engaged In Solar
300+ Customers Worldwide


Our company primarily serves the solar photovoltaic industry and holds its own import and export rights. We have developed a range of independent R&D equipment.

Main Machinery:Fiber Laser Cutting Machine
Solar cell sorting Machine
Solar Cell IV tester
EL defect tester
EL and AOI Appearance Tester
Solar Panel Production Line
Other Auxiliary Machines