Supermarkets have long been challenged with creating an enticing atmosphere and successfully showcasing their product assortment while at the same time achieving energy efficiency and cost savings.

In the old days, life was much simpler: there were very few switches in your car and if you got lucky, the directional light switched on at the exact spot you wanted it to. If a bulb didn’t work, the ...

LED lights are the latest thing in home lighting, using less energy and lasting longer than their incandescent cousins. How do they work? Find out in the latest installment of Appliance Science.