There are two types of incandescent bulbs, incandescent lamp and white LED, but when comparing the two, the LED has the feature that its power consumption is overwhelmingly low, and additionally it is ...

LED street lights are proven to be cheaper for cities, and more environmentally friendly, but health officials in Britain are warning that they also could have adverse health effects on travellers.

Richard G. "Bugs" Stevens does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...