Recent developments in LEDs permit them to be used in environmental and task lighting. LEDs have many advantages over incandescent light sources including lower energy consumption, longer lifetime, improved physical robustness, smaller size, and faster switching. Light-emitting diodes are now used in applications as diverse as aviation lighting, automotive headlamps, advertising, general lighting, traffic signals, camera flashes and lighted wallpaper. As of 2015[update], LEDs powerful enough for room lighting remain somewhat more expensive, and require more precise current and heat management, than compact fluorescent lamp sources of comparable output. COUNT 5
QSN1 What type of atmosphere can LED lighting be used? ANS1 environmental QSN2 What is an advantage to using LED lighting over the normal light sources? ANS2 longer lifetime QSN3 What does LED stand for? ANS3 Light-emitting diodes QSN4 Why are some people hesitant to use LED lighting? ANS4 more expensive QSN5 What is a popular use for LED lighting? ANS5 traffic signals