 Welcome to the Engineering for Change Solutions Library. This living database showcases products designed to be accessible and appropriate for underserved communities worldwide. The Solutions Library bridges information gaps. Engineers, designers and manufacturers working in global development can now access the data they need to produce high-quality, fit-for-service solutions that meet the needs of users faster. Product manufacturers will get exposure and recognition of the quality of their products and solution implementers will find access to neutral, unbiased information and product feedback. Using the Solutions Library is easy. Browsing of products is available via global search or by applying filters. Product reports provide detailed product information including performance parameters. Users are able to share feedback in the comments section of the reports. Comparing multiple products side-by-side is possible with normalized data across a standard set of parameters. Your participation in the Solutions Library is essential to driving transparency and accountability of the technology for development sector. E4C is committed to working with you to develop better tools for knowledge sharing, decision making and frugal innovation. Join us.