The City of Danville is likely to become the first LED city in Virginia, the United States. City officials say that the city has received a 50 thousand dollar grant for it to switch to new LED lights in different parts of the city. LEDs use less energy, last longer and are more environmentally friendly. So far, they've been installed at the water plant, and at the adult detention center.

LSI Industries Inc. (Nasdaq:LYTS) Wednesday announced it has completed the acquisition of AdL Technology and related companies (AdL Engineering and Kelmilfeen), privately owned and based in Columbus, Ohio. Consideration for the asset purchase of these businesses consisted of 2,469,676 shares of LSI's unregistered common stock, cash of $1,328,000, and assumed indebtedness of $3,526,000. The management team of AdL has entered into employment agreements and will continue in their current positions to manage the business for LSI.

Enfis Group Plc. (LSE: ENF), an innovator of intelligent LED lighting systems and technologies, today announced the launch of their new Innovate Series of LED arrays for use in myriad street lighting applications throughout North America.

Leadis Technology, Inc. (NASDAQ: LDIS), an analog and mixed-signal semiconductor developer of LED drivers for consumer electronic devices, today announced sample availability of the LDS9001 and LDS9003, two new LED controllers featuring Leadis' patent pending LED-Sense™ Temperature Compensation engine. This innovative feature allows for direct in-situ monitoring of the LED junction temperature without the need for an external temperature sensor, thereby optimizing LED brightness and reliability throughout the LED's full operating temperature range.

Albeo Technologies today announced its latest white paper, “LED Retrofits of Fluorescent Fixtures: A white paper on converting fluorescent lighting to high efficiency LED.” Examined in the paper are the key factors to consider for converting older fluorescent fixtures to LED.

Philips Lumileds expanded its LUXEON® Rebel family of LEDs with nine new emitters designed specifically for illumination solutions such as recessed lighting, street lamps and retrofit bulbs. The new LEDs have been optimized for specific color temperature and color rendering combinations and deliver performance that makes these new emitters uniquely qualified to meet ENERGY STAR® requirements and similar programs for a broad range of illumination applications.  

In the picture below, you will notice the warm glow that shows in the sky deep into the night. This happens in every city. Scientists call this phenomenon – sky glow!

Since the first light bulb was invented in the 1800’s new lamp technology has evolved. When the fluorescent tube was invented in 1929, sales of traditional light bulbs plummeted, and then in the 1970’s along came the compact fluorescent, since then new variations have evolved, sales of the former types have virtually disappeared, but the fundamental lamp design has remained unchanged, using a heating element to ignite gases and produce light. The use of a heating element results in energy being wasted as heat as opposed to generating light.

Supertex, Inc. (NasdaqGS: SUPX) recently introduced the HV9918, a buck-mode LED driver IC with hysteretic current control and high-side current sensing. It is ideal for a variety of solid-state lighting applications, such as low voltage industrial and architectural LED lighting, signage or decorative lighting, indicator or emergency lighting, as well as a general purpose constant current source.

Electronic components distributor Digi-Key Corporation, recognized by design engineers as having the industry’s broadest selection of electronic components available for immediate shipment, announced that it is now stocking Tyco Electronics’ LED light pipe assemblies. Products now available on Digi-Key’s global websites include:

The Wal-Mart Superstore, the first retail store to feature light-emitting diode (LED) parking lot site lighting, based on specifications developed by the U.S. Department of Energy's (DOE's) Retailer Energy Alliance, will reopen on July 15, 2009, in Leavenworth, Kansas. The Superstore will serve as a test site to determine the viability of expanding LED parking lot lights at Wal-Mart stores nationwide.

At the U.S. Army Garrison Humphreys in the Republic of Korea, LEDtronics LED Wall-Paks now illuminate the four bay doors (at right) of the fire station, while the rest of the building is lit with 250W HPS (amber glow).

With the pressing of a button general director Mart van Buuren fromBVB Substrates reopened the research greenhouse at Bas van Buuren's  premises in De Lier, Holland. In BVB's new test greenhouse growers can do tests with Philips LED-lights to find the best combination of substrates treatments and lighting for their plants in-situ. This is what distinguishes this location from earlier LED tests.

MEAN WELL New Product Announcement: LPLC-18 & LPHC-18 Series ~ 18W Economical CC Mode LED Power Supply

CooLED Lighting introduces an innovative high power LED retrofitted lamp for automobile turn signal, stoplight or tail light. There are 6pcs of 0.5W MaxCool high power LED installing in the top and side of a 25mm-diameter fully-aluminum lamp head. And it is covered by a prismatic diffuser that allows symmetrical light distribution.

Dialog Semiconductor and TridonicAtco, a member of the Zumtobel Group, have established a joint development centre for next generation energy efficient lighting technology.

Heptagon, the Finland-based developer of wafer-scale micro-optics, announced that it has raised over $22m in new equity financing. Most of this financing is coming from a new syndicate led by GGV Capital. Heptagon’s current investors, including Innovations Kapital of Sweden, Innovacom of France and Nokia Growth Partners have also participated in this latest round.

A major extension to St David’s shopping centre in Cardiff has included the use of iColor Flex SLX LED luminaires from Philips Lighting in an illuminated wall running the length of the escalators linking the refurbished centre with the new St David’s 2 development to the South. Supplied by Value Added Reseller Architainment, the LEDs provide the centre’s operators with the opportunity to create a range of scenes, as well as animated displays.

Nanometrics Incorporated (Nasdaq: NANO), a supplier of advanced process control metrology systems used primarily in the manufacturing of semiconductors, solar photovoltaics and high-brightness LEDs, today announced orders for one VerteX™ and multiple RPMBlue™ photoluminescence (PL) mapping metrology systems.

EcoTek Lighting, a division of Expotrans, Inc., has developed energy efficient, ultra-bright outdoor LED light boxes for award-winning, premium green auto manufacturer Fisker Automotive, Inc.

i-Pix LED fixtures continue their run on the high profile tours of 2009, with lighting designer Paul Normandale specifying both BB4 LED wash lights and the original i-Pix Satellite 'brick' LED light-sources as part of his Depeche Mode "Sounds of the Universe" design.

LEDtronics® announces the EXL-TPW Series Pure White LED Exit Light Bulbs that presents a much more reliable alternative to conventional T6 incandescent exit-sign tubes. Brighter, longer lasting, dramatically more power-efficient and maintenance-free, the EXL-TPW Series of exit-sign bulbs offers a sensible choice when it comes to replacing energy-hungry, short-lived and breakage-prone old-technology incandescent bulbs. Source:LEDtronics®

Macroblock introduces a step-down, non-isolated, and high efficiency AC - DC controller, MBI6901, that can deliver constant current to light up high brightness LED and stabilize the LED lighting system. The MBI6901 is able to drive external MOSFET current up to 3A for T-8 CFL replacement, general illumination and power supply for light panel. The MBI6901 accepts universal AC input from 80VAC to 265VAC and regulates the accuracy of preset output current within ±5% by switching the external MOSFET.

Researchers from National Tsing Hua University in Taiwan have developed an organic light-emitting diode (OLEDs) with a range of color temperatures that fully covers those of daylight at different times and regions (2300K to 8200 K).

Innovations in Optics is first to develop a series of OEM light engines that incorporate ultra high brightness (UHB) LEDs, several available primary collection optics, and thermistor and photo-sensor options for real-time feed back loops of temperature and light intensity.

The U.S. Department of Energy (DOE) has released the results of Round 8 of product testing through its Solid-State Lighting (SSL) CALiPER program.

Following a successful first round of the “LED - Emotionalize your light” competition supported by OSRAM and Siemens, the three best lighting concepts have been chosen. In the second stage to follow, the design community will discuss and develop 10 of the 530 entries online. Ultimately, the ideas on the round two winners’ rostrum will be those that have been improved the most during the competition. The winners will be announced on 4 August.

Toshiba Electronics Europe (TEE) has recently expanded its family of high-power, high-brightness white LEDs with two new versions. The new devices provide designers with neutral white and warm white options that can replace conventional bulb technologies in commercial, residential and industrial lighting applications.

The City of Light Is First City in South Korea to Join International Program Cree, Inc. (Nasdaq: CREE) announces that Gwangju, South Korea, is the first city in South Korea to join the LED City® initiative, an international program that promotes the deployment of energy-efficient LED lighting. Gwangju, South Korea’s center for the advancement of photonics, is home to 180 companies that were formed to research, develop and commercialize LED lighting products.

Renaissance Lighting, a leading innovator in the development and manufacture of energy-efficient, ultra long-life solid-state luminaires, has established an industry-leading recycling program designed to keep Renaissance Lighting products out of the nation’s landfills.