Solid-state lighting (SSL) is a kind of lighting that replaces electrical filaments, plasma (used in arc lamps such as fluorescent lamps), or gas with semiconductor light-emitting diodes (LEDs), organic light-emitting diodes (OLEDs), or polymer light-emitting diodes (PLEDs). Because of its numerous advantages, including prolonged life, improved light output quality, inherent safety, small size, and high durability, solid-state lighting is used in a wide range of applications.
What are the advantages of solid-state lighting devices?
Small size, ease of control, uni-directional distribution, cool beam and color rendering that can be very high and comparable to high fluorescent lamps with high color rendering index (CRI), lower energy use compared to incandescent lamps, high performance in cold environments, long life, and new form factors are some of the benefits of SSL. Cost, system and control compatibility, heat management, power quality, the failure process, color consistency, and glare concerns are among current SSL challenges.
What type of solid-state component is the LED ?
When operated in a forward-biased orientation, a light-emitting diode (LED) is simply a PN junction Opto-semiconductor that generates monochromatic (single color) light.
Solid-state lighting (SSL) is a new technology, not a refinement of an old one. New materials and technologies not only provide significant efficiency benefits over traditional incandescent lighting but also chances to put a light in new and often unexpected places and modes that are only now emerging in a quickly evolving industry. However, it also poses substantial hurdles to end-users, designers, the lighting industry, and regulatory agencies as they attempt to deal with the consequences of this shift in a very fundamental service.