Lighthouses have been the key to maritime navigation for centuries, emitting light to guide sailors across treacherous seas. Recognised by the World Economic Forum (WEF), Lighthouse facilities can also act as a guiding light for the manufacturing industry, as it navigates the technologies of Industry 4.0. But what makes a Lighthouse factory, and what can other manufacturers learn from them? Here, Dieter Heimerdinger Vice President of Supply, Sandvik Coromant at high-tech engineering group Sandvik, explains.