General Lighting –the new trend of LED lighting industry

General Lighting includes two series of indoor and outdoor lighting. Both of them need the high light efficiency, long life span, surroundings friendly. The main difference lies on the higher demand indoor lighting requires on lighting effect and lighting quality. And its consumers is more sensitive to cost.

The streetlight is the typical application of outdoor light, is the main part of the city lighting. Its power consumption takes the most of the total consumption. Traditional lighting adopts the HPS lamps as luminaries. Due to low CRI, it makes the lighted objects the obvious color distortion; Although the high CRI HPS is better, but the lighting efficiency is lower and life span is shorter. Because of this, it always has to have expensive altitude maintenance to it.

LED street lamps installed in China to top 500,000 units in 2011

LED street lamps installed in China are expected to grow 43% on year to 500,000 units in 2011, buoyed by the government's promotion policyowner & the implementation of the 12th Five-Year Plan. LED tunnel lamps are expected to be an important growth driver.

The Chinese government's program to put in ten,000 LED street lamps each in ten cities commenced in 2009, & attracted over 1,000 companies to enter LED street lamp development by the finish of 2009. Program execution, however, was much slower than expected & lots of companies discovered later on that the so-called 10,000 units also included luminaires for landscape & consumer outdoor lighting applications. Actual street lamp installation totaled a mere 220,000 units for the year & only 2-3 cities reached the 10,000 unit mark.

LED Street Lamp Design constant and current module selection strategy

We know all the led must adopt constant current source power supply, but now plenty of street lamp manufacturers are mostly in led module has design lovely cases again come looking for the right constant flow module. Little imagine this design process is of the issue, at least, makes this design is not optimal. May still require redesigned LED module.

Your constant current driver modules can take much power? This issue is actually cannot answer. Because constant-current module can take much power is related with plenty of factors. From the constant flow module itself, it is primarily & cooling requirements & radiation condition about, definitely also & drive chip current drivers intelligence. Yet even these are already finalized SLM2842, for example, have selected this constant flow module, so his drive ability seems ought to determined! Actually otherwise! Although its limit drive ability is can know, such as its the largest switch current, its maximum input current, its maximum input voltage & maximum output voltage, etc. However, a constant flow module driver power except & its related cooling capacity outside, the main also & its efficiency relevant. & its efficiency is & plenty of outside factors, about users. So in design or select to think about LED module constant current source requirements & characteristics.

US led street light project

The first of LED streetlight installation projects is now underway in Fremont, New york. The preliminary project, which is part of a bigger roadway widening program, includes the installation of about 50 LED streetlight fixtures on Osgood Road. The second project, which is proposed for Stevenson Road, will replace about 260 existing high pressure sodium (HPS) streetlights with LED fixtures. Both projects are funded by the Department of Energys Energy Efficiency & Conservation Block Grant (EECBG) program.

 Led Street Light Project in US

The Benefits of Led Street Lighting

• High lumen output

LED offers up to eight times more brightness than incandescent lamps without emissions harmful to the environment.

• Tremendous energy savings

High power LED light sources are extremely efficient returning a 50 to 80% saving over conventional sodium or mercury lamps.

Led Street Star 35W by Ideal Lights Spain

LED Street Lighting 

The LED Street Star Retrofit range of lamps are drop in replacements for traditional flood illumination lamps such as SON/SOX lamps. The lamps have been engineered to give correct illumination spreads when used in traditional street lighting applications.

LED Street Lighting - Notable Installations

LED street lights have been installed or announced for installation in several large cities as well as smaller cities throughout the world and it started to be used more and more. The United States Department of Energy has available a number of reports on the results of many pilot projects for municipal outdoor led street lighting. Cities that have announced their intention to install LED street lights include Worcester, Boston  and Cleveland.

About LED street lighting

The LED street lighting (often called LED road lighting) is an integrated light-emitting diode (LED) light fixture that is used for street lighting. Because they are more energy efficient than other technologies used for street lighting, LED street lights can cut by more than half the cost of keeping streets well lighten when dark.