San Francisco Public Utilities Commission staff members are proposing spending $16 million over the next two fiscal years to replace all of the energy-hungry high pressure sodium vapor bulbs in The City’s cobra-head street lights with Led systems.
Over the same period, staff proposed spending an additional $2.1 million for various streetlight improvement efforts.
The SFPUC owns and operates an estimated 17,600 street lights and a part of the project will involve identifying and counting street lights owned by other city departments, according to power official Barbara Hale.
The proposal was included in draft budget documents that have not yet been approved by commissioners.

The two-year test, which also involves the Electric Power Research Institute, will analyze Light Emitting Diode (Led) lights for energy savings and maintenance costs and serve as a research database for utilities and municipalities for evaluating LED technology for more uses.

“Led lighting is already being used in many cities around the US and the world,” said Sandy Sims, Gulf Power’s Public Affairs manager. “LEDs may represent a considerable savings over traditional forms of lighting, not just with energy purchases, but also with reduced maintenance costs.”

The DOE (Department of Energy) calls ENERGY STAR Qualified led lighting“an unprecedented opportunity to save energy and maintenance costs.” According to the agency, LEDs use at least 75 percent less energy than traditional lighting, last 3 to 5 times longer, and are very durable.

“Not only do these bulbs last longer,” said Sims, “They’re very durable — the bulbs won’t break like typical lighting can. LED is an exciting technology that has the potential to change the outdoor lighting business.”

Twenty-eight were lights installed near Gulf Power’s downtown office along 9th and 10th avenues, Salamanca, Romana and E. Colfax Street.

In addition, the light fixtures that have been installed have a feature called “Dark Sky Friendly,” meaning the light is controlled to shine down only, with very little light escaping upward. This is a very popular trend that reduces light “pollution” and beautifies the night as more and more areas install lighting.

Pensacola City Councilwoman Megan Pratt is pleased with the steps the city is taking to become more “green.”

“Not only do LED lights reduce our carbon footprint by using less electricity,” Pratt said, “ it means less money that the city needs to spend on electricity. With a $730,000 annual budget for street light electricity, installing LED lights city-wide would save significant money.”

After visiting the market and evaluating the situation, I found that some major companies have already embarked on LED home lighting R&D and market development. Most of them are optimistic in the market prospect of LED home lighting application. “Now everyone have the opportunity to enter the field, but perhaps only after 5 years, there will be no chance at all.” This is the universal mindset from the LED lighting companies at present.

Depressive domestic market

LED Lighting land-rushed on home lighting area in the year of 2008, but because of high prices and market acceptance, there are few enterprises that are specializing in the field and few options for customers. Most enterprises just demonstrated them in large-scale exhibition instead of mass production and target-oriented marketing. Based on the advantages of LED Lights, domestic enterprises has been increasing in their research and development efforts.”Right now, home lighting companies usually invest in LED R&D for future technical reserve.” Said Liu Yun, a General Manager of Tiansili Lighting Co., Ltd. So at present the vast majority of companies will not push it as the mainstream product.

Liu also noted that LED home lighting shares only a proportion of less than 5%. “So from this point, LED home lighting is still considered as high-end, while from the market point, it belongs to the low-end. Currently, we are not devote major efforts to promote LED lighting in house or residential marketing, we do it for technique storage.”

Lee Hao-Yuan, a marketing manager also pointed out that LED home lighting products still need time to be more attractive and competitive.” At present, everyone knows how prospective LED home lights will be. So many traditional lighting enterprises are using the LED source, but will not regard it as the main light source for the incredible market future.

Guo Jie Wen-chuan, director of domestic sales from Guozhi LED Lighting have different views on LED home lighting in domestic market. He believes that: With the increase of consuming capacity, there are great potential demands in China, local consumers would be more and more acknowledged with the expansion of marketing and reduction of cost. WEN Guo-Jie forecasts, LED home lighting lighting is a trend in the next 5-10 years which may become the mainstream of home lighting products.

Increasing trend of foreign sales

Compared to the depression of domestic market, foreign market acceptance of LED home lighting is totally different. Dazhi Yi said that during the last 3 years, LED Light is gradually used in household lighting, but mostly as secondary source. At present, most of the LED home lighting products are exported to overseas market. Now there are a great deal of house and residential lamps and lanterns which are applying LED as main light source. And moreover, warm white LED are the favorite option of occidental customers. “I believe the next three years, there will be great change in the LED Lighting market. Customers from Europe and the United States would gradually accept it as the main household lighting source.”

Market cultivation, the hard and long way to go

Current LED home lighting is still in the early stage of growth, although there is great potential to develop, but it still needs a lengthy period of time and requires a relatively mature market environment.

“I think that LED home lighting promotion in China is tightly related to the national policies. Same as the experience of energy-saving lamps, with the wide promotion from government, consumers will generally accept for the seek of their own benefit. Although the initial price is not attractive, from a long-term point of view, it does save money, but consumers are generally consider their short-term interests.” Said Liu Yun, Tiansili Lighting.
“I think that LED home lighting development and national policies have a certain relationship can be developed fast and slow, and the Government also has a lot to like, like the government to push energy-saving lamps. Consumers will, generally, self-interest stand point, from the interests of visible thinking. LED home lighting as the main lighting in the market more difficult, it is difficult in the consumer price acceptance. From a long-term point of view, it does save money, but consumers are generally short-term interests to consider “, TNV days Lishi Lighting Business Unit General Manager Liu that the current LED home lighting market development at an early stage of cultivation.
The other important history from energy saving-lamps, although the current LED home lighting is expensive for consumers, but with well-developed LED technology, and with the competition of more and more companies entering this field, its price will fall sharply, just as the development of energy-saving lamps. energy-saving lamps first appeared in the market at the price of 10~20 dollars, and now the prices are much lower, the public would generally accept it. “

PAR Lamp
PAR is an acronym for parabolic aluminized reflector. A PAR lamp, which may utilize either an incandescent filament, a halogen filament tube or a HID arc tube, is a precision pressed-glass reflector lamp. PAR lamps rely on both the internal reflector and prisms in the lens for control of the light beam.

Peak Wavelength
The maximum wavelength of an LED.

Phosphor
An inorganic chemical compound processed into a powder and deposited on the inner glass surface of fluorescent tubes and some mercury and metal-halide lamp bulbs. Phosphors are designed to absorb short wavelength ultraviolet radiation and to transform and emit it as visible light (See FLOURESCENCE ).

Photometry
The measurement of light and related quantities.

Photopic
Vision for which the cones in the eye are responsible; typically at high brightness and in the foveal or central region (See SCOTOPIC , FOVEA, FOVEAL VISON ).

Physical Attributes
LEDs can also be created with specific physical variations to make it unique. A GE Lumination products unique physical attribute is identified in the 12th position of the part number, i.e., GERD5R015-CC.
Flange: A flange is a rim that ¼s added to the base of some LED lamps. The flange increases the diameter at the base, adding stability to the device, especially when mounted flush to a surface. The flange may also aid in fitting the LED into various secondary optic assemblies. Stand-offs: Stand-offs allow the LED to be positioned without coming in direct contact with the printed circuit board (PCB). Stand-offs are ideal for applications where multiple LEDs are required to be at identical heights above a common plane, such as a circuit board.

Plug-In
(See CFL ).

Power Factor (PF)
A measure of the phase difference between voltage and current drawn by an electrical device, such as a ballast or motor. Power factors can range from 0 to 1.0, with 1.0 being ideal. Power factor is sometimes expressed as a percent. Incandescent lamps have power factors close to 1.0 because they are simple “resistive” loads. The power factor of a fluorescent and HID lamp system is determined by the ballast used. “High” power factor usually means a rating of 0.9 or greater. Power companies may penalize users for using low power factor devices.

Preheat Circuit
A type of fluorescent lamp-ballast circuit used with the first commercial fluorescent lamp products. A push button or automatic switch is used to preheat the lamp cathodes to a glow state. Starting the lamp can then be accomplished using simple “choke” or reactor ballasts.

Pulse Start
An HID ballast with a high voltage ignitor to start the lamp.

Open Fixture Rated
Lamps that are approved for burning in open fixtures (as opposed to enclosed fixtures which have an acrylic lens or plate glass enclosure).

Operating Position or Burn Position
Mercury and High Pressure Sodium lamps may be operated in any burn position and will still maintain their rated performance specifications. Metal Halide and Low Pressure Sodium lamps, however, are optimized for performance in specific burn positions, or may be restricted to certain burn positions for safety reasons.

U = Universal burning position
HBU = Horizontal -15º to Base Up
HBD = Horizontal +15º to Base Down
HOR = Horizontal ±15º
H45 = Horizontal to -45º only
VBU = Vertical Base Up ±15º
VBD = Vertical Base Down ±15º
If no special burn position is noted, the burn position is universal.

Operating Voltage
For electrical discharge lamps, this is the voltage measured across the discharge when the lamp is operating. It is governed by the contents of the chamber and is somewhat independent of the ballast and other external factors.

In the field of “New Lighting Resources”, CII will invest in Dooda Innovation Limited whose main business is designing LED new lighting products. After reorganization, Dooda will be able to research, manufacture and sale dual-use Led lighting products applying led back light and lighting technology. Besides, CII invested in Hefei Jingda Guangdian Limited that obtained the patents for led chip production and is able to produce in a large scale.

In the field of “New Material”, CII invested in C-Micro Circuit Corporation and Zhenjiang Fujieda Copper Foil Company Limited respectively. C-Micro Circuit Corporation has the technology in manufacturing LTCC (Low Temperature Co-fired Ceramic) products, such as telecommunication, the e-money and the electronic automobile, which have been widely applied to the military and civil market. Zhenjiang Fujieda Copper Foil Company Limited, as the core upstream supplier with advanced technology in the field of “New Energy Resources” and “New Lighting Resources”, is mainly engaged in producing dual-use copper foil material.

In the field of “New Energy Resource”, CII will invest in Topsun Creation Limited that researches and manufactures high capacity power storage system with the characteristics of high capacity, fully sealed and maintenance-free, which were substantially used in tanks, submarines and barracks as well as civil vehicles and construction.

Mean Lumens
The average light output of a lamp over its rated life. Based on the shape of the lumen depreciation curve, for fluorescent and metal halide lamps , mean lumens are measured at 40% of rated lamp life . For mercury , high-pressure sodium and incandescent lamps , mean lumen ratings refer to lumens at 50% of rated lamp life (See Lumen Maintenance ).

Medium Base
Usually refers to the screw base typically used in household incandescent lamps. There is also the medium bipin base commonly used in T12 and T8 fluorescent lamps.

Mercury Lamp
A high-intensity discharge light source operating at a relatively high pressure (about 1 atmosphere) and temperature in which most of the light is produced by radiation from excited mercury vapor. Phosphor coatings on some lamp types add additional light and improve color rendering.

Metal Halide Lamp
A high intensity discharge light source in which the light is produced by the radiation from mercury, plus halides of metals such as sodium, scandium, indium and dysprosium. Some lamp types may also utilize phosphor coatings. 

Mesopic
Typically referring to nighttime outdoor lighting conditions, the region between PHOTOPIC and SCOTOPIC vision (See SCOTOPIC ).

Mogul Base
A screw base used on larger lamps, e.g. many HID lamps.

Monochromatic Light
Light with only one wavelength (i.e. color) present.

Mounting Height
Distance from the bottom of the fixture to either the floor or work plane, depending on usage.

N

National Stock Number
The standardized part number used by the US Government for procurement.

Nanometer
A unit of wavelength equal to one billionth of a meter.

Available now for immediate delivery from Datexx, the new Sentina LED-92M four-way emergency light is just that: four lights in one unit that has a retail price of $30.00. Fully charged to support motion, darkness, and power outage sensors, the Sentina LED-92M light simply plugs into any standard AC outlet and performs for one penny per day. The upper light activates only when approached, in darkness, or in a power outage. When disconnected from the socket, the light will also perform as an emergency flash light for up to eight hours.

The Sentina LED-92M is perfect for use in kitchens, hallways, bedrooms, and bathrooms — literally any place where emergency lighting may become necessary on a moment’s notice. No other emergency led light comes close to delivering this level of performance reliability — and peace of mind security — at any price!

The Sentina LED-92M is part of a complete line of Green Home lighting products available at www.datexx.com. Each Led lighting solution is remarkable for its unique mix of features. Available in models for kitchens, bathrooms, hallways, bedrooms, and patios, all Sentina LED lights are designed to perform when needed in the most energy efficient ways and at retail prices under $45.00.

Headquartered in Kenilworth, New Jersey, Datexx is a leading manufacturer and marketer of innovatively designed, affordably priced consumer and business LED lighting solutions, household, travel, mobility, and executive products that are both energy and cost efficient. For more than 15 years, the company has proudly met the needs of smart consumers seeking smarter living solutions. To date, more than 20-million consumers have joined the Datexx family of satisfied customers.

SOURCE earthtimes.org

All industrialists big or small are striving hard for different thing like , making available the most unique product to the customers in the least pricing policies, cost cutting, earn carbon credit, cover a large market and using available energy in the most efficient way etc. Now where cost cutting is concern people have a lot of options open these days namely, use modern machines, use those parts which can replace the existing and are more efficient and are light on the pockets too.

A click on a switch at home can set a handful of light bulbs glow. Open the car door, or the refrigerator door, and a light comes on. The streets across the city are illuminated by street lights; stores brightly advertise their presence through light. Lighting accounts for if not major but quite a lot of all energy used in the entire country. All this light, however, comes at a cost; producing the electricity creates pollution from power plants and greenhouse gas emissions. Reducing, energy needs from lighting, even just by half could save billions and help wean us off our dependence on oil.

Growing electricity bills these days is a major problem to all big and small corporate houses, which increase overheads to intolerable heights. And each and every company is fighting hard to reduce these. Why talk of companies even the government is facing a problem to cope up with the increasing demand of electricity and thus they come up with load shedding programmes for every city and area. In the lighting industry, tremendous energy savings can also be realized with a change from incandescent or fluorescent technologies to LED lighting.

Many now see light-emitting diodes, or LEDs, as the potential solution to the problem. LED lighting is the solution for the government as well as all the corporate houses. LED’s all these years were considered as the decoration lights while festivals but now its scope and importance is beyond imagination. Everyone is now aware of these lights and also their importance to some extent. They are the best available lighting products and are termed as the next generation lights. They are the most energy efficient and also cost effective in a package.

Retailers are starting to carry bulbs built around light-emitting diodes, or LEDs. These bulbs promise to last longer and use less energy than even compact fluorescents (CFLs), which are much longer-lived and power-efficient than standard incandescent bulbs.

But you may want to hold off for now: LED bulbs are much pricier than CFLs, and the technology still has a way to go before it reaches its potential.

“LED light bulbs are great,” said Michael Kanellos, senior analyst at Greentech Media, a trade publication and research firm. But he adds, “No one’s going go to Home Depot and buy a bulb that costs as much as a BBQ.”

About 20% of the average household’s electric bill goes toward lighting cost, the U.S. Department of Energy estimates, and CFLs and potentially LEDs can help reduce that energy usage. To produce the same light as a 60-watt incandescent bulb, a CFL uses less than 25% of the electricity and an LED bulb potentially as little as 10%.

The Energy Department estimates that consumers can save $6 per bulb per year by switching out an incandescent for a CFL.