ABSTRACT
This chapter examines some general lamp requirements for various applications. It explores some light-emitting diode (LED) lamp designs to suit a number of typical applications and looks at the important trade-offs that many LED lamps encounter, which are intended to serve as the bases for optimizing LED lamp designs. Many LED replacement lamps that currently provide somewhat better color quality compared to Compact fluorescent lamps s fail to generate equivalent illuminance levels over comparably wide angles covering similar spatial dimensions above and below the lamps. Incandescent and fluorescent lamps produce adequate luminous intensity from a larger surface area, allowing them to spread the luminous intensity distribution from the lamp surface farther compared to current LED counterparts. In order for manufacturers to produce LED replacement lamps successfully, they must focus on three key parameters simultaneously: color, brightness, and spatial flux distribution. Many manufacturers have been touting LED replacement lamps for outdoor street and parking-lot lamps.
