Ruben Iglesias designed a concept cooler that uses two lamps charged by photovoltaic cells to keep the contents cold.

Both lamps used together creates the highest mode of cooling. When using only one lamp to cool and one lamp to illuminate the Eco Freezer will switch to “low mode”, this will work fine if the freezer is not full. The cooling system will stop working if both lamps are being used. The lamps have three modes of illumination; On, S.O.S. and Flicker.

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