ABSTRACT
One of the main uses of pico-solar systems is for lighting. This chapter introduces the reader to general lighting principles and the key terms used within the industry when measuring light output and performance. The chapter goes on to focus mainly on light-emitting diodes (LEDs) as the lighting technology which dominates the pico-solar sector. It explains what LEDs are, how they compare with other lighting technologies and how they are continuing to improve both in terms of performance and price.
