An eco-friendly design of clock comes in the Clock Citrus which is developed by the team in collaboration with Anna Gram Workshop and L'Atelier Chauvet and Anthemis. The clock is digital Lemon fed by lemons instead of batteries.
This clock takes the ecological physical principle of electrolysis highlighted by Mr Volta, inventor of the battery in 1799. Thus powered the Citrus clock has a battery life of about one week with a lemon.