SafetyNet’s primary goal is to design and build devices to increase the selectivity of commercial fishing practices, making the industry more sustainable. Light, of interest to the fishing gear technology community since the 1970s, can be used as a tool to achieve this. Technologies such as LEDs and cheap manufacturing of hardware and electronics are opening up new commercial opportunities for the wider application of these selectivity devices. SafetyNet Technologies has been building sophisticated LED systems to enable experimentation into how light can segregate between ages and species of fish, and is applying that knowledge to create simple sets of lights to help fishermen catch the right fish. We work across the sector with fishermen, scientists, suppliers and regulators to create user-centred solutions to issues currently faced by the industry.