It’s effective, but there’s a catch — the mercury vapor lamps that currently illuminate the process gulp energy, soil easily, and come with hefty price tags for maintenance and replacement. “The bulbs ...

You can turn on and off LED lights instantaneously because they don’t require a warm-up period like metal halide lamps. LEDs are safe for the environment. Fluorescent and mercury vapor lights contain ...

The narrow wedge of the zodiacal light (left) reaches nearly to the Milky Way (right) on Nov. 1 from near Kenton, Oklahoma. The zodiacal light stands high in the eastern sky this time of year but ...

While energy-saving and applications are two paramount factors in finding which lamp to install, the dusk-to-dawn lights have them all. Furthermore, they are easy to install and long-lasting. If you ...

Department of Biological and Chemical Engineering, Aarhus University, Aarhus C 8000, Denmark ...

Xinjiang Key Laboratory of High Value Green Utilization of Low-rank Coal, Changji University, Changji 831100, China ...