We created a billboard that harnesses the energy from oranges to illuminate a neon sign that reads 'Natural Energy' and the Tropicana logo. With several thousand spikes of copper and zinc, a lot of wiring and three months of testing, we managed to make a giant multi-cell battery powerful enough to light up a billboard. The custom build was produced by Unit9 in collaboration with director Johnny Hardstaff, who created the accompanying 90-second film.
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