PPL Electric Utilities and Allentown, Pennsylvania were partnering on the project，which were to install LED-based street lights in a 53-fixture retrofit ,in order to save enough electricity to power 1.5 to 2.5 homes. General Electric (GE) Lighting Systems and Cooper Lighting would supply LED lights for the project trial.

It is said that the trial would involve to a seven-block section of Hamilton Street in Allentown. Through the project, it would replace 80,000 high-pressure sodium (HPS) lights, which was expected to save energy about 50% than the high-pressure sodium (HPS) lights.

In the trial project, Allentown planed to replace 250W HPS lights with 157W LED alternatives, and 150W HPS lights with either 95W GE lights or 103W Cooper lights. The city was expected that would spend $54 per year for operating a 150W HPS light and may down to $29 per year for the LED-based alternative. Also, the city expected that the SSL luminaries to last 12 years or longer.

Both the city and utility believed the trial was an important first step in evaluating SSL. PPL Electric Utilities thought the price gap in LED lights and average lights became smaller, and the LED lights had a longer life than average lights. They expected that gathered more information and made more informed decisions through the trial. 

Now, the first fixture had been installed by an Allentown Traffic Planning and Control Bureau crew in a public ceremony last Friday.