The developments in LED technology have brought innovations in street and area lighting applications in cities. 3000K LED Street Lights, which are used in outdoor lighting all over the world, especially in the United States, are not only environmentally friendly technology, but also protect human health. They consume much less energy than standard high-intensity discharge (HID) lights, last three times longer, and they reduce greenhouse gas emissions and maintenance costs. In general, LED lights also contribute less to light trespass because they emit direct illumination. Many cities have started to convert from HID to LED streetlights HID to LED streetlights. For example; Telensa, the UK-based smart city and street lighting specialist, announced the partnership with City of Darwin in Australia. The company will provide its PLANet intelligent street lighting system and replace about 10,000 street and public lights with wirelessly connected LEDs.
The Sunshine Coast Council also began a smart street lighting pilot project in the Maroochydore City Center with Telensa since September 2018 with the aim to create social, environmental and financial benefits with smart city applications.
In New Zealand, Tauranga City has started a LED converting project which will replace over 7,000 street lights over the next year. According to Tauranga City, the light with a color temperature of 3000K will be installed to deliver warmer white light. With power efficient LED, the City Council expect the project would save energy cost for the city.
In the 3000K LED Light, the human eye still perceives the light as white, but it is softer, providing good visibility and a comfortable environment. The energy efficiency of 3000K LED light is only 3% less than that of 4000K. However, light is much nicer to humans and has less impact on wildlife. The American Medical Association (AMA) has announced that led lights minimize potential harmful effects to human health and the environment. BUT, encourages the use of 3000K or lower lighting for outdoor installations such as roadways. With LED technology, it is a matter of time before 2700K or less becomes the new norm.