The objective of SLIC was to accelerate the introduction and rollout of proven low carbon technologies (TRL scale 6-9) in public lighting by demonstrating and testing these proven innovative techniques and by tackling the main barriers (access to funding on the first place next to social and safety obstacles) that were hindering a large uptake of these techniques. This was to be done by the development and testing of various methods, tools and concepts for energy savings, energy efficiency and renewable energy use in public lighting. All these actions aim to increase the uptake of sustainable public lighting concepts, and carbon reduction by managing authorities. The project wanted to contribute positively to the average level of performance of the 2 Seas area with regards to the adoption of low-carbon technologies and applications. The durability of the project outputs in terms of solutions (models), tools, methods, investments, and demonstrations were created to have a lasting impact because these will be effectively disseminated to other local and regional authorities and stakeholders in public lighting in the 2 Seas area.

The partnership and cross-border cooperation in the SLIC project largely focused on exchange of experiences and knowledge. Each pilot had its own dynamics, environment, funding, and technology applied. Fortunately, the participating municipalities, province, and county from the four Member States were able to share their experiences with each other. This allowed them to inspire each other, learn from each other and see how rules and habits in other countries lead to a different approach. 
Partners learned greatly about the different approaches and the different cultures of the Member States, for instance, on stakeholder involvement. In terms of resident involvement, the difference in preferences between residents of different Member States was a continuous learning path.  The project examined the extent to which local authorities involve their citizens, or stakeholders, in the decision-making process. For the Dutch and French partners, stakeholder involvement was obvious and necessary. In France, the pilot was about public lighting along a walking and cycling path that is the route to a shopping centre just outside the centre of the French city of Amiens. Therefore, the municipality also had to take into account the wishes of shopkeepers. For the other Member States, stakeholder involvement was not actively foreseen. The UK partner did not proactively involve stakeholders in their PL policy but gave citizens the option to react themselves on issues they observed in the city. The cross-border cooperation also helped to tackle other challenges: for instance, investing more in SMART Public Lighting Concepts due to positive business case and the research on safety aspects of public lighting.