Context: 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.

Question: What type of atmosphere can LED lighting be used?
Answer: environmental

Question: What is an advantage to using LED lighting over the normal light sources?
Answer: longer lifetime

Question: What does LED stand for?
Answer: Light-emitting diodes

Question: Why are some people hesitant to use LED lighting?
Answer: more expensive

Question: What is a popular use for LED lighting?
Answer: traffic signals

Question: What type of atmosphere can't LED lighting be used?
Answer: Unanswerable

Question: What is an advantage to using non-LED lighting over the normal light sources?
Answer: Unanswerable

Question:  What does LEED stand for?
Answer: Unanswerable

Question:  Why aren't some people hesitant to use LED lighting?
Answer: Unanswerable

Question:  What is a popular use for non-LED lighting?
Answer: Unanswerable