2012年2月7日星期二

QC to use LED bulbs for streetlights

The Quezon City government will install 10,000 new LED (Light Emitting Diodes) streetlights this year to increase by more than 80 percent the rate of illumination in the city, especially along major city roads and densely populated communities.News on solar energy harvesting bikefrontlight has been focused lately on individual success with the older style of solar paneling.

The 10,000 new LED bulbs will be part of the 22,000 streetlights to be installed by the city government in a five--year period beginning 2012.We are the innovators and engineers of some the highest quality LED goodskylanternser, LED Flashlights.

Katipunan Avenue, Aurora Boulevard, Visayas Avenue,Buy cheap brightstal, discount light strip, LED signal lights, wheel lights on car decorations store, free shipping for all orders. West Avenue, Timog Avenue, IBP Road long Commonwealth Avenue, A. Bonifacio Avenue, Quirino Highway, Tandang Sora, SB Road along Gen. Luis and Litex Road along Commonwealth Avenue are among the major city roads covered by the project.

Also getting a share of the new streetlights are the densely populated communities of Bagong Silangan, Batasan Hills, Commonwealth, Holy Spirit,We are professional led module,ledlightforyou,led panel,led tube manufacturers and factory. Payatas, Novaliches Proper, Gulod, Bahay-Toro and Ramon Magsaysay.

Aside from promoting energy efficiency, the move to install new LED streetlights is also aimed at reducing the city's electricity bills by at least 50 percent.

To date,On one of our more recent staff night rides we took pretty much the entire shinebrightled range we stock with us, electricity for streetlights using the existing High Pressure Sodium (HPS) streetlights account for 64.6 percent of the total electrical consumption of QC.

Mayor Herbert Bautista cited as the need for QC to implement an energy- efficient streetlighting program not only to reduce carbon greenhouse emissions but also to augment safety and security.

"We have to go green," the mayor stressed.

The city's streelighting program, which will be implemented by the task force streetlights headed by Engr. Ricky Aureo, also hopes to explore the city's carbon finance potential under the Clean Development Mechanism initiative provided under the carbon finance capacity building workshop organized by the QC environmental protection and waste management department and sponsored by World Bank.

To date, QC has already adopted the Leadership in Energy and Environmental Design (LEED) criteria in the evaluation of green infrastructure in a conscious effort to protect and conserve the environment.

QC has also partnered with the International Institute for Energy Conservation (IIEC) for the adoption of procurement guidelines for life-cycle costing, green schools retrofit program, energy efficiency program for offices and hospitals, residential energy efficiency awareness program, five-year capital planning for energy efficiency retrofits, municipal fleet maintenance program, development of IRR for the city's green building ordinance and creation of the emergency management council.

Councils crime fear after bar in Haverhill applies to have outside tables and chairs

COUNCILLORS will decide on tomorrow whether to grant a licensing application for table and chairs outside Bar Vu in Haverhill, amid fears that it could add to crime and disorder.Flexible bluebright are designed for cove lighting, halo-lit channel lettering, cabinet lighting,

Harry Zachariou who runs the bar in Jubilee Walk has applied for a street vending permit for four tables and 16 chairs outside from 9am to 8pm.

The hours being asked for under the permit application have already been scaled back from a 12.30am finish on weekdays, and 2.30am finish at weekends and bank holidays, after police raised objections.

"The area in question and the street area utilised for Bar Vu as it currently stands experiences a great deal of crime and disorder,Online shopping for dstti2011, flexible led strip, LED Car Light, under cabinet lighting, Led Ribbon, LED controller, LED dimmer,LED ... compromising public safety and contributes to public nuisance," police said.

It said the application, 'If not subject to proper control measures' would be likely to lead to an increase in public disorder in the area and so was unable to support the application.

The town council meanwhile object to the table and chairs being outside after 5pm.

"We consider that there is a risk of crime and disorder and public nuisance arising from the proposed arrangements," it said.A ledlightbulbss that floats over the water is revealed.

"This will encourage the consumption of alcohol in Jubilee Walk.Welcome to ledlighting003 Online store,We supply led strip,led tube,led strip wholesale etc.

"Over the Christmas period we were asked by the police to remove overhead Christmas lights from the High Street end of Jubilee Walk, as they were obstructing CCTV coverage.

"This demonstrates that there are ongoing concerns about crime and anti social behaviour in this area, and so the provision of facilities that encourage the consumption of alcohol would seem wholly inappropriate."

However a report to St Edmundsbury Borough Council's licensing and regulatory sub-committee, which meets on tomorrow ,This is MagicShine MJ-856 1600 lumen goodBikelight head light with Waterproof battery or MJ-828 Battery. said the application does have the backing of Suffolk County Councillor for Haverhill Tim Marks although no further comments were included in the report.

In his application Mr Zachariou said door staff will control noise levels or people both sitting outside and leaving the bar.

He said no sales of alcohol will take place at the seating area after 9pm and that after 9am all but two tables and all the seats, will be removed and the area designated as a standing area for smoking only.

Mobeam lights up with $1.5 million for LED couponing tech

Mobeam has added $1.5 million finding to a 4.9 million Series A venture round announced in October 2011. The money comes from new investor DFJ Athena, a Korea-focused venture fund affiliated with Draper Fisher Jurvetson, as well as new funds from existing investor and board chairman Ben DuPont. DFJ Athena's founder and managing director, Perry Ha, also joins mobeam's board of directors.

The funding follows the company's announcement in December that it is partnering with Procter & Gamble to bring a mobile couponing system to market. Mobeam's technology enables mobile phones to be scanned by point of sale laser scanners.

"As is demonstrated by the partnership between mobeam and the world's largest consumer packaged goods producer, P&G, coupons are the missing link in the mobile commerce value chain," said Perry Ha, founder and managing director of DFJ Athena. "With a global retail infrastructure already in place that utilizes a very widely accepted standard for coupon scanning – one dimensional barcodes, or UPC symbols – what is necessary is for the mobile technology to embrace that infrastructure. The most elegant way to do that is through a software solution. With many handset makers in Korea, DFJ Athena believed investing in mobeam's software based solution was an obvious choice."

Mobeam claims that due to the way mobile handset screens are constructed, even the most vibrantly displayed barcode cannot be read by the commonly used laser scanners found at point of sale in most retailers.I got to borrow a Solidlights downlight in return for writing a bit about it.The Magicshine brightshineer bicycle light At 1000 lumens, now brighter and more energy efficient. Mobeam's claim is that its technology adapts existing mobile technology to already-deployed retail POS infrastructure, opening the door to a wide range of previously impossible mobile commerce programs and services.

Mobeam uses LED technology present on many of handsets to transform barcodes into a beam of light that every laser scanner can read. The diea is that this makes it possible for a phone to present a coupon that can be easily and conveniently scanned and redeemed,Whether you want the complete package with very high end dual beam strobes, or basic mountainbicyclelight ... without the need for retailers to upgrade their technology.Related Searches: led bike head light, bike light, goodledlamp silicone, Beyond mobile couponing, mobeam's technology could enable applications such as mobile ticketing and content services.

A deputy tried to stop a white Toyota 4-Runner on Knighton Road for a traffic violation and found the SUV had a false registration tag, sheriff's Sgt. Jason Gassaway said. The deputy turned on his emergency lights, at which point the driver of SUV turned onto Churn Creek Road and ran a red light in the process.

The driver led deputies on a chase reaching speeds of 90 mph, Gassaway said. During the chase the driver threw a gun into the Sacramento River and drove north in southbound lanes of Interstate 5 near Factory Outlets Drive.

A dive team later found thI stock many of the parts used in these ledbulbs projects, on my web store.e gun off the North Street Bridge in Anderson, Gassaway said.

The SUV led deputies and Anderson police down Deschutes Road and Hawes Road before turning onto Hopson Road, which is a dead end. The driver rammed the sheriff's and police cars before stopping.

2012年2月5日星期日

Hazard distance of LED luminaires

For irradiance-based hazards, this procedure is relatively straightforward,I got to borrow a Solidlights downlight in return for writing a bit about it. although one may be hampered by the requirement of measurement in a 1.4-radian FOV for all but the thermal skin hazard. The inverse-square irradiance law may be used with caution, but such calculations should not be necessary since irradiance can readily be measured at other distances by a number of techniques, such as the use of a luxmeter to seek an illuminance corresponding to the given level of irradiance sought.

Radiance-based hazards are more difficult to handle since measurements should be made in a specific FOV. Where the source subtends an angle less than the field of view, the hazard distance can be predicted since it will reduce with the square of the measurement distance, as the area of dark covered by the FOV increases.

Where a single emitter subtends an angle greater than the FOV, as a first approximation, physiological radiance will be constant until the distance at which the source subtends an angle less than the FOV. In the case of arrays, the physiological radiance may not decrease sufficiently before more LEDs fall into the FOV in which case, as a first approximation,Whether you want the complete package with very high end dual beam strobes, or basic mountainbicyclelight ... physiological radiance will be constant until the distance at which the entire array subtends an angI stock many of the parts used in these ledbulbs projects, on my web store.le less than the FOV.

In awaiting an update of luminaire standards, evaluation of the photobiological safety of LED luminaires is currently performed through implementation of IEC62471.Related Searches: led bike head light, bike light, goodledlamp silicone, This situation has provided little satisfaction due to issues with the evaluation at 500-lx distance and the implementation of worst-case analysis to permit the transfer of LED manufacturer's data. IEC committee SC34A is currently working on this issue, in considering the implementation of a restricted version of the hazard-distance analysis relative to the sole concern of white LEDs in GLS applications, namely the retinal blue-light hazard.

Based upon the assumption that light sources classified as exempt or RG1 for blue-light hazard are suitable for GLS applications, both component LEDs and finished products should, in the first instance, be evaluated at 200 mm in an 11-mrad FOV, with the spectral range extended to 300-780 nm to cover both blue light and photopic regions. This measurement serves as both an analysis of blue light RG1, and as a worst-case analysis, assuming that true radiance is measured.

Where the resulting blue-light radiance is below the RG1 exposure limit, the component LED or finished product may be considered exempt/RG1 in all conditions. Where the RG1 exposure limit is exceeded, the RG1 hazard distance should be determined through the evaluation of radiance as an irradiance measurement, with respect to a corresponding RG1 exposure limit expressed in blue-light-weighted irradiance.The Magicshine brightshineer bicycle light At 1000 lumens, now brighter and more energy efficient. Given the ratio of luminance to blue-light radiance, the illuminance level at which the RG1 blue-light irradiance should be obtained is determined.

In the case of finished products, the distance at which this illuminance is obtained should be reported by using a luxmeter: at distances closer to the source than this distance, RG2 applies, elsewhere RG1/exempt applies. In the case of component LEDs, the illuminance value is simply reported in the data sheet such that the finished-product manufacturer can apply the aforementioned procedure to determine the RG1 distance for the particular product under consideration.

How luminaire standards will in future implement the RG1 hazard distance is still a work in progress, but it is clear that one can tolerate greater RG1 distances for ceiling-mounted applications compared for example to portable luminaires.

Analysis based on LED maker's data

In order to avoid the cost and effort of evaluating the photobiological safety of finished products, pressure has in the past been brought to bear on LED manufacturers to provide photobiological safety information which may be transferred to the finished product.A ledlightbulbss that floats over the water is revealed. It is clear that an IEC62471 evaluation of a bare LED is not directly transferable to a finished product, which may include multiple emitters and beam-shaping optics, so another strategy should be employed.

The irradiance of the finished product cannot in any way be predicted. However, in the case of radiance-based hazards, a measurement of the true radiance, coupled with the law of conservation of radiance, may be used to determine the maximum possible radiance of any finished product using a given LED.

IEC TR 62471-2 introduces this principle for the evaluation of the blue-light hazard (the dominant concern for retinal injury) through a measurement of true radiance of the component LED at 200-mm distance and 1.7-mrad FOV. The resulting value is adopted as the blue-light radiance of the final product, to be compared with the exposure limit values of each risk group in turn. It is important to note that care should be taken to ensure that the data provided by the manufacturer provides a correct analysis for the operating conditions of the finished product.

This procedure leads in many cases to an over-estimation of the hazard,Online shopping for dstti2011, flexible led strip, LED Car Light, under cabinet lighting, Led Ribbon, LED controller, LED dimmer,LED ... since account is not taken of physiological radiance. This is demonstrated in Table 2, where a comparison is made between an IEC62471 analysis and a worst-case analysis of a particular product.Welcome to ledlighting003 Online store,We supply led strip,led tube,led strip wholesale etc. In the former case, each RG is considered in turn, with measurements being performed in the correct FOV and compared with the RG exposure limit. In the latter case the worst-case radiance is assumed and compared with the limits of each risk group in turn (resulting in an RG2 classification).

A similar result is obtained in many instances, especially when considering high-power LEDs used in SSL applications. According to IEC TR 62471-2, blue-light RG2 requires the use of a warning label. This means that the lighting industry has been faced with the decision of either determining how to implement the recommendation of labeling, or not accepting such worst-case analysis evaluation, which clearly has no bearing on the true hazard posed by the source in the intended application. This procedure has generally been discontinued while awaiting a more acceptable solution, as will be seen below.

Where no photobiological safety-evaluation information is available from an LED manufacturer,This is MagicShine MJ-856 1600 lumen goodBikelight head light with Waterproof battery or MJ-828 Battery. some have sought to make estimations based on data-sheet values, which typically report beam-emission angle and either total flux or intensity in photometric or radiometric quantities, depending on whether the LED emission wavelength is within or without the visible region.

Given the emission angle and the evaluation distance, the area illuminated by the LED may be determined and either total flux or intensity used to make an estimate of irradiance. To estimate physiological radiance, it is required to know both the intensity and the FOV area corresponding to the RG considered. Where intensity is not directly reported in the datasheet, it may be calculated from the total flux and beam-emission angle. In the case of white or colored LEDs, where photometric data is often provided, a conversion factor must be determined to convert to radiometric units.Flexible bluebright are designed for cove lighting, halo-lit channel lettering, cabinet lighting.

Ravenstahl, Peduto vie for LED spotlight

Pittsburgh City Councilman Bill Peduto was in Shadyside on Tuesday night to celebrate the completion of the first phase of an LED streetlight project.

Not to be outdone,We are the innovators and engineers of some the highest quality LED goodskylanternser, LED Flashlights, Mayor Luke Ravenstahl held his own celebration Wednesday in the West End,We are professional led module,ledlightforyou,led panel,led tube manufacturers and factory. using a cherry-picker to install one of the lights himself.

Each highlighted his role in the project -- hinting at the battle to come if Mr. Peduto decides to challenge Mr. Ravenstahl in the 2013 mayoral election.

The installation of 3,200 to 3,500 energy-efficient streetlights in business districts citywide will be completed this month, a project that Mr. Peduto traces to his convening of the Climate Action Plan Task Force in 2005 and to a pilot project with LED lights on Walnut Street in Shadyside three years later.

Mr. Peduto returned to Shadyside on Tuesday night to celebrate completion of the work, including installation of more lights on Walnut. He said Pittsburgh's careful study of LED lighting options and an ordinance intended to yield citywide equity in streetlight investments are examples for other cities to emulate.

But Mr. Ravenstahl's office said executive-branch administrators have done the heavy lifting, such as securing an $814,000 state grant to help pay for the first phase, developing project specifications and overseeing experiments with dozens of LED varieties.

"I'm excited to see this project move forward, and I want to thank my employees for their hard work in getting this tough project done," Mr. Ravenstahl said in a statement. "It's easy to talk about embracing green technology, but actually doing the grunt work, putting out the proposals, writing the grants -- and everything else in between -- takes time, commitment and energy."

Installation of the lights began in December and will cost about $2 million. Besides the state grant,News on solar energy harvesting bikefrontlight has been focused lately on individual success with the older style of solar paneling. the city is using $50,000 from the mayor's office and savings from energy-reduction initiatives to pay for the work, Jim Sloss, energy and utilities manager, said.

Eventually, the city hopes to convert all 40,000 of its streetlights to LEDs. "We're starting to put together Phase 2, and we've started to identify some lights," Mr. Sloss said.

Mr. Peduto and Mr. Sloss said converting 40,000 lights to LEDs would reduce carbon dioxide emissions by 12,700 tons a year -- the equivalent of taking 3,800 cars off the road.

To highlight Mr. Peduto's role in the project,On one of our more recent staff night rides we took pretty much the entire shinebrightled range we stock with us, the councilman's office provided a timeline showing that he convened the Climate Action Plan Task Force in 2005, initiated the Walnut Street pilot project in 2008 and shepherded the lighting code through council in 2010. His staff also cited a Feb. 10, 2009, Pittsburgh Post-Gazette story that said Mr. Peduto had introduced legislation directing Mr.Buy cheap brightstal, discount light strip, LED signal lights, wheel lights on car decorations store, free shipping for all orders. Ravenstahl to install LED lights.

LED - the lighting frontier

Improving energy efficiency and reducing consumption is a growing concern in South Africa, driven not only by dramatically increased utility costs but also by a global trend towards environmental consciousness. Lighting is one area that consumes a large amount of electricity, and since compact fluorescent light bulbs have become increasingly popular because they offer improved energy efficiency. However, due to environmental concerns around these lamps, Light Emitting Diode (LED) lamps are beginning to come to the fore as the most eco-friendly,Includes Helmet Mount, Pro Head Belt and ... Innovators in goodledbulbs1 Technology ... energy efficient solution for lighting.

Lighting is undeniably an area for improvement when it comes to optimising energy consumption, as up to 50% of industrial and 25% of home power usage can be attributed to this. As a result, one of the easiest ways to lessen energy consumption and reduce carbon footprints both in homes and commercial spaces is to switch out standard light bulbs for more efficient, lower consumption lamps.

Traditional tungsten filament bulbs, also known as incandescent lamps, produce light by heating the filament, a highly inefficient technology since up to 90% of the energy used by the bulb is converted to heat. Aside from this the bulbs have a short life span and must be continuously replaced, at cost to the environment in terms of land fill and carbon emissions from manufacturing. In fact, the European Union has already banned incandescent lamps and is taking steps to phase out their sale and usage across the region.

Compact fluorescent light (CFL) bulbs have been touted as a replacement for tungsten filament; however they are far from ideal. While it is true that CFLs are far more efficient, using less than a quarter of the power to run, and can last up to ten times longer than filament bulbs, they also contain mercury, a toxic substance that is harmful to people, animals and the earth. This mercury is essential to CFL technology, and although only a small amount is used in each bulb there is still reason for concern.

While the mercury is contained within the glass, there is no risk. However light bulbs are easy to break, and once these are broken the mercury vapour is released into the environment. In addition, because of this hazard these bulbs are considered toxic waste and need to be specially disposed of. However many users of CFLs remain unaware of this, simply throwing the bulbs away with regular garbage. This garbage ends up on landfills, where the mercury has a cumulative effect,Shop online for r4onsale. Light bulbs, rope light, accessories and decorative lighting. polluting the earth, the air and potentially the water,China LED Strip catalog and ledlighting2012 manufacturer directory. exposing people to this harmful gas.

LEDs are diodes that convert energy directly into light through the movement of electrons in the semi-conductor material. This means that they lose far less energy to heat than other light technologies - they are up to 85% more efficient than filament bulbs, and even around 5% more efficient than CFLs.Some people are concerned that if they use brightshine or flashing lights on their bike they are breaking the law. They do not produce a significant amount of heat, so cooling requirements in lighting intensive environments are reduce, and they contain no poisonous gasses, so are eco-friendly.

Because they do not contain a filament that can burn out, they also have an incredibly long lifespan of up to 35 000 hours, or 16 years in real terms working on six hours of usage a day, while s standard incandescent bulb may last up to 1000 hours. Over the course of 16 years, the succession of standard bulbs would have consumed 1400 kilowatt hours, compared to just 350 for the LED bulb, translating into far higher energy costs. The cost of 35 standard light bulbs over the years also far outweighs the higher cost of the LED bulb, and the carbon emissions produced from one LED bulb are just 175kg over its lifespan,Welcome to bicygnals online innovative goodskylanterns and torches. compared to 700kg produced by 35 incandescent bulbs.