All products sold by our company comply with relevant national technical standards or industry standards.
They are strictly certified under the ISO quality management system, and relevant product documentation (such as installation instructions, packing list, Chinese user manual, and certificate of conformity) is provided.

In accordance with the requirements stipulated in the contract signed with the customer, we provide product installation, commissioning, and technical support services. Our company can arrange for technical engineers to provide full-service support until the system is operational. During the operation of the product, if there are any inquiries, we will respond within 4 hours. For technical issues that the customer cannot resolve, our company will arrange for technical engineers to arrive at the site within 24 hours based on the actual situation.

Training Services: We can provide technical training for product maintenance and operation personnel. Once the customer confirms the personnel to be trained and notifies us in advance, we will develop a targeted training plan accordingly.

After the product installation is completed and it is operating normally, our company will provide the Product User Manual and other relevant instructions to facilitate the customer's familiarization with the product's operation.

1、Within the Warranty Period: During the warranty period specified in the contract, for any equipment or project quality issues discovered during unpacking inspection, installation, commissioning, or trial operation, we provide free repair, replacement, or return services (the "three guarantees") until the product meets the quality requirements.
2、Outside the Warranty Period: Our company provides lifelong technical support services. If product components are damaged, we will supply spare parts at a reasonable price. Should the customer require product upgrades or expansions, our company will provide the necessary equipment and technical services for the upgrade at a preferential price.

24/7 phone technical support, 365 days a year.

Increase has been dedicated to R&D in the power electronics industry for 15 years. We boast a strong technical R&D team and a comprehensive after-sales service system. Adhering to our philosophy of "Technological Leadership, Teamwork, First-Class Service, and Customer Satisfaction," we provide customers with technical support and training services. We help customers use our products quickly and correctly, and promptly address any product issues that arise. Simultaneously, we gather various problems, suggestions, and requirements encountered during after-sales service into our product knowledge base and product requirement database. This allows us to continuously improve our service efficiency, refine our product design, and ultimately provide customers with high-quality products and services.

If you are not satisfied with our products or services, or if you have suggestions for improvement, you may submit your complaints or suggestions to the After-Sales Service Manager or your sales representative.