All Uni-Solar products are based on a sophisticated multi-layer solar cell. This amourphous thin-film cell was originally developed by Energy Conversion Devices Inc. The United Solar spectrum-splitting multijunction design now holds all the world's records for amorphous silicon solar cell efficiency. Such records include the highest stable efficiency measured by the National Renewable Energy Laboratory U.S. (NREL) for a small-area amorphous silicon solar cell -- 13 percent.

What does spectrum splitting mean?

Visible light is divided into three primary colours - Red, Green and Blue. Crystalline panels process all of these colours in the same manner on one slice of silicon. Triple junction technology employs amorphous cell construction, layering multiple cells, one on top of the other. Each cell is specially tuned to process either Red, Green or Blue light. This results in a much more effective method of converting light into electricity.