ANSI C136.15-2020 Roadway Lighting Luminaire Identification
There is something vital, almost mystical to driving through long stretches of road in America. Some people just want to get in their cars and […]
luminaire
IES Standard File Format for Photometric Data, IES LM-63-19
In the sun’s absence, darkness flourishes throughout the earth. Of course, we have lighting (illumination) to provide visibility throughout the night and indoors. Key to […]
Street Light Standards
Ever since the early days of natural gas escaping volcano leaks through bamboo pipes to serve as street lamps for ancient Peking in 500 BCE […]