Best solar investments for your home. Solar lights work by storing the power of the sun during the day for use at night. Because these systems are small, they don’t require much energy to work ...

Weather-school Close. FILE - Manager Nick Reynoza holds a 100-watt incandescent light bulb at Royal Lighting in Los Angeles, Jan. 21, 2011 ... this is about the best way I’ve found to show ...

WILBRAHAM, Mass. — For nearly a year and a half, a Massachusetts high school has been lit up around the clock because the district can’t turn off the roughly 7,000 lights in the sprawling ...