FRESNEL LENS PARABOLIC MIRROR FOCAL POINT FOCAL LENGTH SOLAR POWER ALTERNATIVE ENERGY HID LIGHT
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www.greenpowerscience.com This is a video illuminating the focal point.
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Hybrid Solar-Wind Energy Street Light – 3D Animation by Tony De Palma
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Part of the Building Research Study – Energy conservation Unit – Corso Vitt. Emanuele Pratola Serra (Av) – ITALY – Lampione stradale eolico solare. By Tony De Palma
