This application note describes a 150W rating design guideline for LED street lighting. The application design consists of CRM PFC and LLC SRC with high power factor and high power conversion ...

FLINT, Michigan — Kevin Markell puts the phrase “real world experience” in a new light. The 21-year-old Davison native helped design an LED street light whose prototype may be shown to potential ...

In 2009, Southern Company and Mississippi Power worked with the Electric Power Research Institute (EPRI) to launch an investigation into the use of LED technology for area lighting. The goal of the ...

Older street lights in many communities have been getting replaced with LED street lights. In my opinion, those replacements have brought about a colossal calamity. Please examine this photograph of ...

For astronomers, a well-lit city means a sky unavailable for study. Worse, light pollution is blamed for affecting bird migration, sea turtle hatching, and wildlife mating and feeding routines.

Haley Mast is a freelance writer, fact-checker, and small organic farmer in the Columbia River Gorge. She enjoys gardening, reporting on environmental topics, and spending her time outside ...

Find a downloadable version of this story in pdf format at the end of the story. With the rising costs of energy and increasing governmental requirements for high efficiency lighting, the high ...

A recent study suggests that our home galaxy, the Milky Way, cannot be seen by one-third of humanity. Why? Millions of city lamps brighten our cities every night, but only part of their light is used ...