He explains, ‘It’s a good habit to turn off lights when leaving a room because it helps conserve energy use, which can help save money at home on the utility bill. This is especially true of ...

So, do you really need to turn off the lights every time you leave a room or aren't using it? The answer is sometimes yes, but oftentimes no—and it mostly depends on the type of lightbulbs you use.

The World Wildlife Fund is asking individuals, businesses, governments and organizations around the world to turn off all electric lights for “Earth Hour” from 8:30 p.m. to 9:30 p.m. local ...

LEDs, though, are the real MVPs of the lighting world. They don’t care how often you turn them off and on: they sip energy like it’s fine wine, and last ages.