# ST-TLD3A+ IV Tester – PV Module Flash & Performance > ST-TLD3A+ / SMTL-V21.3A+ solar IV tester – A+ spectrum, tests mono, poly, TOPCon, HJT, IBC & thin film. Accurate I-V/P-V curves for full module ![ST-TLD3A+ IV Tester – PV Module Flash & Performance](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_1774514799764615.webp) #### ST-TLD3A+ IV Tester – PV Module Flash & Performance #### US$ 116000 ST-TLD3A+ / SMTL-V21.3A+ solar IV tester – A+ spectrum, tests mono, poly, TOPCon, HJT, IBC & thin film. Accurate I-V/P-V curves for full module ##### Stock: Available | 30~60 days manufacturing time ##### Category: Product ##### Tags: --- --- **Quick answer:** The ST-TLD3A+ is a down-beam IV tester, and the SMTL-V21.3A+ is its up-beam low-light counterpart, together covering solar panel flash and performance testing. Both work to IEC 60904 conditions, handle modules up to about 2,600 mm by 1,600 mm with a 1,200 W class envelope, and serve lines from 5 MW to 1 GW. Down-beam testing illuminates from above the module, which suits a standard horizontal production flow; up-beam testing illuminates from below and is used to measure low-light and rear-side performance, which matters for bifacial modules. If your product line includes bifacial modules, the second configuration is not optional: a single down-beam tester cannot measure the rear contribution, and the nameplate figure will be short. PV Module Manufacturing · by Jerry, Ooitech ## Product Introduction Ooitech presents two professional solar panel IV testing solutions: the **ST-TLD3A+ Down-beam Tester** and the **SMTL-V21.3A+ Up-beam Long Pulse Width Component Tester**. These advanced testing systems are specifically designed for comprehensive electrical property testing of various photovoltaic modules including monocrystalline silicon, polycrystalline silicon, Topcon, HIT, HJT, IBC, and thin film solar cells. Both models utilize state-of-the-art xenon lamp technology with secondary large capacitor power supply, ensuring stable light source performance and accurate measurement results for solar panel manufacturers seeking reliable quality control solutions. These professional-grade testers are essential equipment for solar panel production lines ranging from 5MW to 1GW capacity, providing manufacturers with precise electrical parameter measurements including I-V and P-V curves, efficiency calculations, and comprehensive performance analysis. The equipment supports large component testing up to 2600mm×1600mm, making them suitable for modern large-format solar panels. ## Technical Parameters ### ST-TLD3A+ Down-beam Solar Simulator Specifications | Parameter | Specification | | --- | --- | | Equipment Model | ST-TLD3A+ | | Measurable Component Size | 2600mm × 1600mm | | Test Speed | 240 pcs/hour | | Flash Time | 10-200ms (adjustable) | | Lamp Life | >100,000 flashes (at 10ms) | | Irradiance Range | 200-1200 W/m² | | Spectral Matching | 0.875-1.125 (Grade A+) | | Irradiance Instability STI | ≤0.25% (Grade A+) | | Irradiance Instability LTI | ≤1% (Grade A+) | | Irradiance Inhomogeneity | ≤1% (Grade A+) | | Spectral Range | 300-1200nm (IEC 60904-9:2020) | | Repeat Test Accuracy | <0.1% (40 flashes) | | Voltage Range | 1V/10V/50V/100V/150V/200V | | Current Range | 0.25A/1A/5A/10A/20A | | Measurement Resolution | 16bit (0.003% resolution) | | Operating Mode | Single pulse | | Power Supply | 200-240V, 10A, 50/60Hz, Single-phase | | Equipment Dimensions | Light box: 2900×1800×1050mmElectrical cabinet: 800×600×1800mm | | Equipment Weight | Light box: 0.5tElectrical cabinet: 0.28t | ### SMTL-V21.3A+ Up-beam Solar Simulator Specifications | Parameter | Specification | | --- | --- | | Equipment Model | SMTL-V21.3A+ | | Measurable Component Size | 2600mm × 1600mm | | Test Speed | 240 pcs/hour | | Flash Time | 10-150ms (adjustable) | | Lamp Life | >100,000 flashes (at 10ms) | | Irradiance Range | 500-1200 W/m² | | Spectral Matching | 0.875-1.125 (Grade A+) | | Irradiance Instability STI | ≤0.25% (Grade A+) | | Irradiance Instability LTI | ≤1% (Grade A+) | | Irradiance Inhomogeneity | ≤1% (Grade A+) | | Spectral Range | 300-1200nm (IEC 60904-9:2020) | | Repeat Test Accuracy | <0.1% (40 flashes) | | Voltage Range | 1V/10V/50V/100V/150V/200V | | Current Range | 0.25A/1A/5A/10A/20A | | Measurement Resolution | 16bit (0.003% resolution) | | Operating Mode | Single pulse | | Power Supply | 200-240V, 10A, 50/60Hz, Single-phase | | Equipment Dimensions | Light source box: 3058×2580×5300mmElectrical cabinet: 800×600×1800mm | | Equipment Weight | Light source box: 1.8tElectrical cabinet: 0.28t | ### Measurable Parameters (Both Models) - I-V and P-V curves - Short-circuit current (Isc) - Open-circuit voltage (Voc) - Maximum power (Pmpp) - Cell efficiency (Eff) - Fill factor (FF) - Current at maximum power point (Impp) - Voltage at maximum power point (Umpp) - Series resistance (Rser) - Parallel resistance (Rshunt) - Solar cell surface temperature - Current at fixed point voltage (Iuld) - Power at fixed point voltage (Puld) ## Technical Advantages ### Superior Light Source Technology - **Secondary Large Capacitor Power Supply**: Ensures stable and consistent power delivery for accurate measurements - **Professional-Grade Xenon Lamps**: Direct-tube xenon lamp technology providing reliable and repeatable test results - **A+ Grade Spectrum Quality**: Professionally designed filters achieving spectrum matching of 87.5%-112.5% - **Extended Lamp Life**: Over 100,000 flashes guarantee long-term reliability and reduced maintenance costs ### Advanced Testing Capabilities - **Wide Irradiance Range**: Adjustable from 200-1200 W/m² (ST-TLD3A+) and 500-1200 W/m² (SMTL-V21.3A+) - **Flexible Pulse Width**: Long pulse width adjustable from 10-200ms (ST-TLD3A+) and 10-150ms (SMTL-V21.3A+) - **High-Speed Testing**: Production capacity of 240 pieces per hour for efficient quality control - **Large Component Compatibility**: Supports testing of modules up to 2600mm×1600mm ### Precision and Accuracy - **16-bit Measurement Resolution**: Industry-leading 0.003% measurement resolution - **Exceptional Repeatability**: Less than 0.1% variation over 40 flashes - **Grade A+ Performance**: Meets all IEC 60904-9:2020 standards for spectral matching and irradiance stability - **Automatic Temperature Correction**: Infrared temperature measurement with real-time compensation ### User-Friendly Design - **Professional Control System**: Intuitive data acquisition and analysis software - **Comprehensive Data Output**: Complete electrical parameters with I-V and P-V curve visualization - **Ergonomic Operation**: ST-TLD3A+ features lower beating light platform for easy operation - **Stable Uniformity**: SMTL-V21.3A+ top light design ensures consistent test conditions ## Product Applications ### Solar Panel Manufacturing Quality Control Both IV testers are essential equipment for solar panel production lines, providing critical quality assurance at various stages of manufacturing. They enable manufacturers to verify electrical performance specifications, ensure product consistency, and maintain compliance with international standards. The high-speed testing capability of 240 pieces per hour makes them ideal for integration into automated production lines. ### Research and Development These advanced testing systems support R&D activities for next-generation solar technologies including Topcon, HJT, IBC, and various thin film technologies. The adjustable irradiance levels and long pulse width capabilities allow researchers to simulate different environmental conditions and evaluate cell performance under various scenarios. ### Production Line Applications - **Incoming Material Inspection**: Verify the quality of solar cells before module assembly - **In-Process Quality Control**: Monitor production consistency during manufacturing - **Final Product Testing**: Comprehensive electrical characterization before shipment - **Power Rating Classification**: Sort modules based on actual power output for optimal pricing ### Technology Compatibility - **Crystalline Silicon**: Monocrystalline and polycrystalline silicon modules - **Advanced Cell Technologies**: Topcon, HIT, HJT, IBC cell testing - **Thin Film Technologies**: CIGS, CdTe, and other thin film solar cells - **Flexible Solar Panels**: Compatible with various flexible module designs - **Shingled Cell Modules**: Accurate testing of shingled interconnection technology ### Industry Applications - Solar panel manufacturers (5MW to 1GW production capacity) - Quality certification laboratories - Solar technology research institutions - Module reliability testing facilities - Solar panel recycling and refurbishment centers ## Contact and Purchase Information Why Choose Ooitech? Ooitech specializes in complete solar panel production line equipment design, delivery, training, raw materials supply, and after-sales service. With expertise in equipment ranging from 5MW to 1GW production capacity, we provide comprehensive solutions including solar cell laser cutting machines, [tabber stringer](https://www.ooitech.com/SS-1500B-Automatic-Solar-Cell-Welding-Machine-High-Speed-Tabber-Stringer-for-BC-TOPCON-PERC-Cells.html)s, [layup machine](https://www.ooitech.com/automatic-solar-cell-layup-machine-ws-cl80d-high-speed-mbb-half-cell-string-laying-equipment-for-solar-panel-production-line.html)s, [bussing machine](https://www.ooitech.com/hdx200-p-half-cell-auto-bussing-machine-automatic-busbar-welding-machine-for-solar-panel-production.html)s, EL testers, laminators, [framing machine](https://www.ooitech.com/solar-panel-framing-machine-with-punching-function-and-otzk-a-full-automatic-framing-machine-with-auto-dispensing-glue-ooitech.html)s, and more. ### Comprehensive Warranty and Support - **One-year warranty** after successful installation or 16 months from BL date (whichever is earlier) - **Free maintenance services** and spare parts during warranty period (excluding consumables) - **Lifetime technical support** with online services and technical guidance - **Professional training** for operators to ensure optimal equipment utilization - **Favorable spare parts pricing** after warranty period ### Get Your Quote Today **Email**: [info@ooitech.com](mailto:info@ooitech.com)**Phone**: +86 18571646990**WhatsApp**: +86 15961592660**Head Office**: Wuhan Yangtze River Center, Wuhan, China**Website**: [www.ooitech.com](http://www.ooitech.com) ### Additional Resources - **Download Product Catalog**: [Ooitech Complete Catalog](https://drive.google.com/file/d/1EWA3TV6hJb_cAUH6w0UENpRglAgq_Kzv/view?usp=sharing) - **Company Profile**: [Ooitech Company Profile](https://drive.google.com/file/d/1yg9NLXzLOmPWriYScQZeM6ZfSZ8gcQ88/view?usp=sharing) - **YouTube Channel**: [www.youtube.com/ooitech](https://www.youtube.com/ooitech) - **MBB Production Line Video**: [Watch Full Automatic Solar Panel Production Line](https://www.youtube.com/watch?v=uRS9sn94sIQ) Subscribe to our YouTube channel for more insights into solar panel manufacturing technology and stay updated with the latest innovations in solar production equipment! **Contact us now** for detailed technical specifications, customization options, and competitive pricing for your solar panel testing requirements! ## Related Items ![Full Automatic Solar Panel Production Line Equipment](https://cdn.ooitech.com/static/upload/image/20260325/1774401482439949.webp) #### Full Automatic Solar Panel Production Line Equipment ![SS-1500B Solar Cell Tabber Stringer: 1200 Cells/h](https://cdn.ooitech.com/static/upload/image/20260323/1774253968620270.webp) #### SS-1500B Solar Cell Tabber Stringer: 1200 Cells/h ![PV Ribbon Machine — Wire Drawing and Tinning Line](https://cdn.ooitech.com/static/upload/image/20260511/2026051111285937.webp) #### PV Ribbon Machine — Wire Drawing and Tinning Line ![ST-TLD3A+ IV Tester – PV Module Flash & Performance](https://cdn.ooitech.com/static/upload/image/20260326/1774514799764615.webp) #### ST-TLD3A+ IV Tester – PV Module Flash & Performance ![SC-20D Dual-Laser Solar Cell Cutting Machine](https://cdn.ooitech.com/static/upload/image/20260319/1773917787610971.webp) #### SC-20D Dual-Laser Solar Cell Cutting Machine ![Solar Panel Framing Machine: ±1mm, 2000x1100mm](https://cdn.ooitech.com/static/upload/image/20260327/1774608426614052.webp) #### Solar Panel Framing Machine: ±1mm, 2000x1100mm ![Robot String Cell Layup HS-PBR: 5s/String, ±0.3mm](https://cdn.ooitech.com/static/upload/image/20260324/1774338062497258.webp) #### Robot String Cell Layup HS-PBR: 5s/String, ±0.3mm ![SL-1000 Back Contact Cell Welder: 600 Cells/h](https://cdn.ooitech.com/static/upload/image/20260323/1774263750726273.webp) #### SL-1000 Back Contact Cell Welder: 600 Cells/h ![](/template/ooitech/assets/img/shape/06.png) ![](https://cdn.ooitech.com/runtime/image/w800_h700_fitblur_v2_w800_h700_fitblur_v2_1757399770541443.webp) ### Request A Quote All uploads are secure and confidential. ## We deliver expertise you can trust our service Direct-from-Factory Equipment. ![](/template/ooitech/assets/img/icon/money-2.svg) ### Cost-Effective Advantages We deliver exceptional value, maximizing results while optimizing budgets for clients. ![](/template/ooitech/assets/img/icon/staff.svg) ### Our Experience Team Our skilled professionals specialize in innovative solutions and tailored strategies. ![](/template/ooitech/assets/img/icon/certified.svg) ### 15+ Years Industry Experience Deep expertise ensures reliable, trend-aware, and proven outcomes for success. ![](https://cdn.ooitech.com/static/upload/image/20250910/1757477357667605.webp) ![](https://cdn.ooitech.com/static/upload/image/20250910/1757477724911512.webp) ![](/template/ooitech/assets/img/shape/06.png) ## What Our Client Say's about us Client testimonials praise our deep understanding of their challenges, which leads to innovative solutions and strong ROI. Long-term collaborations—some over a decade—demonstrate their trust and satisfaction. Their success stories drive us to continually exceed expectations. [Know More **](#quote-form) ![](/template/ooitech/assets/img/icon/quote.svg) Thanks to Ooitech for providing the fully automated production equipment—your installation and after-sales service have been excellent. ![Amjad](https://cdn.ooitech.com/runtime/image/w160_h160_fitblur_v2_2026041720921238.webp) ### Amjad ![](/template/ooitech/assets/img/icon/quote.svg) thank you for ooitech's professional support and on time after service. ![Diarra From Africa](https://cdn.ooitech.com/runtime/image/w160_h160_fitblur_v2_1784509010217979.webp) ### Diarra From Africa ![](/template/ooitech/assets/img/icon/quote.svg) A man with a big soul. Thank you very much for your visit Mr Wu. Thank you very much for the services provided in installing equipment and training my students. 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