Advancing the effective use of light for society and the environment
The National Lighting Product Information Program (NLPIP) at Rensselaer Polytechnic Institute's Lighting Research Center (LRC) purchased 14 streetlights, identified by a specifier survey, between July and October 2009. Four used high pressure sodium (HPS), one used induction, eight used light-emitting diodes (LEDs), and one used pulse-start metal halide (PSMH) light sources. NLPIP determined how many of each type of streetlight were needed to illuminate 1.0 mile (1.6 kilometer [km]) of a collector roadway to meet the design criteria specified by the American National Standards Institute (ANSI)/Illuminating Engineering Society of North America (IESNA) RP-8-00 (R2005), the American National Standard Practice for Roadway Lighting (referred to as RP-8 below). NLPIP then calculated power demand and costs per mile.
NLPIP found that:
* NLPIP's response to comments made about this publication can be viewed here.