Balance of System (BOS) component inspections and quality assurance

100% defect free BOS Components from Asia

Today, China is not only the PV market leader in the production of solar modules and solar inverters. All other components required for a PV plant are manufactured here as well.

The Balance of System components include solar cables, disconnects & fuse boxes, connectors, combiner boxes, recombiners, mounting systems, trackers, charge controllers and more.

Our team of PV Quality Engineers is specifically trained to ensure the quality of each of these components.

The benefits of entrusting us with the quality assurance of your BOS components include:

  • 100% independence from suppliers and manufacturers
  • PV-specialized European-American inspection team
  • comprehensive testing with strict attention to detail
  • replacement of defective BOS components prior to shipment
  • inspections on-site at BOS component factories in Asia
  • employment of advanced testing equipment
  • proprietary inspection techniques
  • detailed, confidential and on-time inspection reporting

Contact us for more information


Our quality assurance scope covers:

  • Cables
  • Charge Controllers
  • Combiner Boxes
  • Connectors
  • Disconnects & Fuse Boxes
  • Isolators
  • Mounting Systems
  • Recombiners
  • Trackers

Services offered:

  • Standard Pre-Shipment Inspections (SPSI)
  • Full Pre-Shipment Inspections (FPSI)
  • During Production (DuPro)/ In-Line Inspections
  • Cargo Safety Management (CSM

Protecting your PV system from costly component failures

Balance of System BOS quality inspection


Since 2009, our PV quality engineering team has helped companies worldwide assure
the quality of their purchases in Asia.

Kisun Solar is proud to work with leading PV companies and institutions in more than
15 countries.

Visit us at our offices in Shanghai or Hong Kong, or connect with our subsidiaries in
the USA, India, Brazil, the Netherlands, and Turkey.

Get in touch for a detailed service offering or a quote

Contact us for a detailed service offering and quote.
You will receive a reply within 24 hours.

Request a Quote