Solid-state lighting is the first genuinely new lighting technology in more than a century. The light emitting diode (LED) lighting systems, which reduce electricity consumption by up to 85%, have proven to be very effective in applications where brightness, visibility and long life are important, such as in exit signs and traffic signals. New uses for LEDs include small area lighting, such as task and under-shelf fixtures, decorative lighting, and pathway and step marking. Industry and government are researching solid-state technology for general illumination in residential and commercial settings.
Technology Options
LEDs
are highly efficient semiconductor devices. They can emit considerable
amounts of light from small inputs of power. For instance,
LED traffic
signals use between 6 to 25 watts
while