ABSTRACT
This chapter describes major advanced lighting control options and closes with a discussion about the most economical strategies that incorporate lighting controls into lighting upgrades. A basic daylight harvesting system starts with a photosensor that measures task light levels in areas receiving daylight and signals a controller to adjust the lighting system's light output when a target is reached. In short, LED lighting products do not fail similarly to traditional light sources such as incandescent and fluorescent. The driver is the point of connection between a LED lighting system and its controller. To advance market adoption in general lighting, lighting customers at all levels need to readily understand what a specific LED product does and have confidence that its represented performance will be delivered as promised. The basic metrics for assessing performance of solid-state lighting products remains essentially the same as any other source.
