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Latest Lighting Stories

2015-03-17 23:05:36

Larson Electronics has developed a new 28 watt LED tube lamp that is an excellent choice for upgrading existing T8 fluorescent lamp fixtures as well as a direct replacement for our own LED light

2015-03-17 23:01:21

Leapfrog Lighting's new five-step LED lighting retrofit package makes it simple for businesses to lower their lighting-related electricity costs by up to 85%, while eliminating complexity,

2015-03-17 12:26:49

WORCESTER, Mass., March 17, 2015 /PRNewswire/ -- Access Fixtures, a leader in commercial and sports lighting, has expanded its tennis court lighting packages with an

2015-03-17 08:24:00

Sensorex introduces first family of ultraviolet transmittance monitors using UVC LEDs instead of mercury-based lamps as light source GREEN ISLAND, N.Y., March 17, 2015 /PRNewswire/ --

2015-03-17 08:23:54

BRUSSELS, March 17, 2015 /PRNewswire-USNewswire/ -- LED lamps from quality suppliers are rapidly reducing in price - and improving in energy efficiency - far beyond industry and expert forecasts.

2015-03-16 23:04:52

Ushio America, Inc. is proud to introduce a reliable LED PAR 38 replacement lamp solution for high ceilings and long throws of light.

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2015-03-16 12:06:46

Street lamps and other nighttime sources of light have become common and essential for life in the city, but could they be adversely affecting plant life?

2015-03-16 08:35:05

ActiveLED Customer Installations Maintain Original Light Levels Five Years Later GEORGETOWN, Texas, March 16, 2015 /PRNewswire/ --

2015-03-13 23:03:00

Leading manufacturer and supplier of explosion proof lighting equipment Larson Electronics has announced the release of a 300 watt LED lighting system that is designed for portability and reliability

2015-03-13 23:02:54

LED troffers, high bay fixtures, recessed downlights, and vapor tight fixtures now available at Topbulb. East Chicago, IN (PRWEB) March 13, 2015 Topbulb,


Latest Lighting Reference Libraries

25_189e43a49b73767fbf8377afb7e64593
2010-09-29 16:52:36

The incandescent light bulb provides a source of electric light through incandescence. The bulb works by passing current through a filament which heats to a temperature that produces light. The glass bulb that contains the filament prevents oxidation of the hot filament. The bulbs are also called electric lamps. Incandescent bulbs come in a various sizes and voltages. They can range from 1.5 volts to 300, require no external regulating equipment and have low manufacturing costs. They work...

26_ba32d7458c9b3264c597f006bab25aa4
2009-04-23 12:28:48

Pavel Nikolayevich Yablochkov (September 14, 1847 "“ March 31, 1984) was a Russian electrical engineer, inventor, and businessman. His most notable invention was a type of electric carbon arc lamp, called the Yablochkov candle. Yablochkov graduated from Mykolayiv Engineering Institute as a military engineer in 1866. In 1869, he continued his education at the Galvanic School in St. Petersburg. Yablochkov settled in Moscow in 1873 after serving time in the army. After that, he was...

7_680ea780e47f127f8391cefcc37578012
2004-10-19 04:45:43

Light Pollution -- Light pollution refers to excess light, created by human activities, that brightens the night sky enough to hide many stars from observers. For the average person, light pollution means that even on a clear, moonless night, only a few stars may be visible. When a city grows up near an astronomical observatory, light pollution can make the observatory effectively useless. Unlike most forms of pollution, light pollution isn't persistent: turn the lights off, and the...

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Word of the Day
sudarium
  • A handkerchief.
  • Specifically— The legendary sweat-cloth; the handkerchief of St. Veronica, according to tradition miraculously impressed with the mask of Christ; also, the napkin about Christ's head (Johu xx. 7).
  • In general, any miraculous portrait of Christ.
The word 'sudarium' comes from a Latin word meaning 'a handkerchief'.