A. SLS (previously I-know) is an award-winning & revolutionary project for the Continuing Professional Development (CPD) of refrigeration, air conditioning and heat pump professionals world-wide.

A. The SLS library is available via a yearly subscription of £50. Contact us for full details.

A. Previous I-know users will need to re-subscribe to star-learningsolutions in order to access courses and technical material. Follow the link to register your interest and we will guide you through the process.

A. Previous course data/certification information from the I-know.com system is available at user request; please email admin@star-learningsolutions.com for more information.