The top cell in a-Si absorbs the obvious light and leaves the infrared part of the spectrum for the bottom cell in nc-Si. The Sunraycer vehicle developed by GM (Basic Motors) Electrical cars that run off of solar energy and/or sunlight are generally often called solar cars and trucks.[citation needed] https://lipe60370.theisblog.com/36830767/helping-the-others-realize-the-advantages-of-100w-solar-panel-price