two light bulbs that are suspended over the grass in a field with a blue sky | Concept: Sustainable Product Design – Optical illusions
Renewable Energy Celtic Knot
a celtic knot with a green light on it’s center and the celtic symbol in the | Concept: Renewable Energy Sources – Celtic knotwork
Electric Car Charging Station and Retro Floral Patterns
the electric car charging station and an image of a woman standing on a street with flowers | Concept: Electric Vehicles and Charging Stations – Retro floral patterns