1.1 Quality Commitment Letter

As a professional solar panel equipment company, we are well aware of the importance of quality to you. In order to ensure that you get the best quality products and services, we solemnly promise:
1. Strict quality control
We use advanced production technology and strict quality inspection system, from raw material procurement to product delivery, every link is strictly controlled.
All raw materials come from reliable suppliers and are strictly screened and inspected to ensure compliance with international standards and industry requirements.
During the production process, we use automated production equipment and precision testing instruments to ensure product consistency and stability.
2. Excellent product performance
Our solar panel equipment has high photoelectric conversion efficiency, which can maximize the conversion of solar energy into electrical energy and provide you with a reliable power supply.
The product has good weather resistance and corrosion resistance, and can operate stably for a long time under various harsh environmental conditions.
Strictly control the output power and voltage stability of the product to ensure a perfect match with your power system and improve the reliability and safety of the system.
3. High-quality after-sales service
We provide you with a full range of after-sales services, including product installation guidance, technical consultation and troubleshooting.
During the product warranty period, if there is a quality problem, we will provide you with free repair or replacement services in a timely manner.
Regularly visit and test your products to ensure that they always maintain good performance.
4. Continuous innovation and improvement
We continue to invest in R&D resources, committed to the innovation and improvement of solar panel equipment technology, and provide you with more advanced and efficient products.
We actively pay attention to industry trends and customer needs, and continuously optimize product design and service quality to meet your changing needs.
We are well aware that quality is the lifeline of the enterprise, and customer satisfaction is our greatest pursuit. We will always adhere to our quality commitments and return your trust and support with high-quality products and services.

1.2 Solar Panel Equipment After-Sales Warranty Terms

Warranty Scope
The solar panel equipment produced by our company enjoys the following warranty services under normal use from the date of purchase.
The warranty covers the failure of the main components such as the solar panel body, junction box, frame, etc. caused by manufacturing process and material defects.
II. Warranty Period
The solar panel equipment provides a limited warranty service of [X] years.
During the warranty period, if there is a quality problem with the product, our company will provide free repair or replacement of parts.
III. Non-warranty Scope
Damage caused by force majeure (such as earthquakes, floods, typhoons and other natural disasters).
Damage caused by improper human operation, intentional damage or unauthorized repair and modification.
Natural wear and tear during normal use.
Products beyond the warranty period.
IV. After-sales Service Process
After discovering quality problems with the product, the customer should contact our after-sales service department in a timely manner and provide the product purchase certificate and fault description.
The after-sales service department will respond within [specific time] after receiving customer feedback and arrange professional technicians to perform fault diagnosis.
If it is determined that the product is a fault within the warranty scope, our company will provide free repair or replacement of parts. The repaired or replaced product will continue to enjoy the remaining warranty period.
If the product failure is not covered by the warranty, the company will provide the customer with a repair quotation, and the customer can choose whether to repair it according to their own needs.
V. Other Terms
The company reserves the final right of interpretation of the after-sales warranty terms.
If this after-sales warranty terms conflict with national laws and regulations, the national laws and regulations shall prevail.

1.3 Equipment quality assurance measures

Raw material control
Strictly screen suppliers: Establish a strict supplier evaluation system to conduct a comprehensive investigation of suppliers’ qualifications, production capacity, quality control system, etc. Only choose suppliers with good reputation and stable quality to cooperate, and ensure that the quality source of raw materials is reliable.
Raw material inspection: Strict inspection of each batch of purchased raw materials, including appearance inspection, performance testing, component analysis, etc. Use advanced testing equipment and technology to ensure that the raw materials meet relevant standards and the company’s quality requirements. For example, key indicators such as the photoelectric conversion efficiency of solar cells and the purity of silicon wafers are strictly tested.
Inventory management: Reasonable inventory management of raw materials to ensure that raw materials are not damp, polluted, or deteriorated during storage. Establish a first-in-first-out inventory management principle to avoid long-term backlog of raw materials and quality degradation.

 

II. Production process control
Standardized production process: Formulate strict production process and operating specifications to ensure that every production link is operated in accordance with standards. Strictly monitor key control points in the production process, such as welding process, packaging process, etc., to ensure the stability of product quality.
Quality inspection: Set up multiple quality inspection points during the production process, and professional quality inspectors will conduct real-time inspections of products. When problems are found, they are corrected in time to ensure that unqualified products do not flow into the next process.
Equipment maintenance and calibration: Regularly maintain and maintain production equipment to ensure the normal operation and accuracy of the equipment. Regularly calibrate key production equipment to ensure that the performance of the equipment meets production requirements. For example, calibrate the temperature control accuracy of welding equipment and the pressure control accuracy of laminators.
Employee training: Strengthen the training of production employees to improve their quality awareness and operating skills. Ensure that employees are familiar with the production process and quality standards, can operate production equipment correctly, and strictly implement quality control requirements.
3. Finished product inspection
Comprehensive performance testing: Conduct comprehensive performance testing on finished solar panel equipment, including photoelectric conversion efficiency testing, insulation resistance testing, voltage resistance testing, weather resistance testing, etc. Ensure that the various performance indicators of the product meet relevant standards and customer requirements.
Appearance inspection: Strictly inspect the appearance of the finished product, including surface flatness, color consistency, frame sealing, etc. Ensure that the product appearance is flawless and improve the product’s aesthetics and market competitiveness.
Sampling inspection: Sampling inspection of finished products according to a certain sampling ratio to ensure the consistency of product quality. Carry out more rigorous testing and inspection on sampled products, and trace and handle problems in a timely manner.
Quality traceability system: Establish a complete quality traceability system, uniquely identify each solar panel equipment, and record key information and quality data in the production process. Once a quality problem occurs, it can be quickly traced back to the source of the problem and take effective measures to deal with it.
IV. Continuous improvement

Quality data analysis: Regularly analyze the quality data in the production process to find out the main causes and potential risks of quality problems. According to the results of data analysis, formulate targeted improvement measures to continuously improve product quality.
Customer feedback processing: Attach great importance to customer feedback and handle customer complaints and suggestions in a timely manner. Conduct in-depth analysis of quality problems reported by customers, take effective measures to improve, and improve customer satisfaction.
Technological innovation and R&D: Continuously invest in R&D resources, and continuously carry out technological innovation and product upgrades. Use new materials, processes and technologies to improve the performance and quality of solar panel equipment to meet the changing needs of the market.