TESS, a Taiwanese manufacturing company, recently introduced a 7W LED bulb that, at 560 lumens, can serve as a replacement for a typical 500-lumen, 40W incandescent bulb (Figure 1). TESS has received ...

Early adopters of LED lighting will remember 50,000 hour or even 100,000 hour lifetime ratings printed on the box. But during a recent trip to the hardware store the longest advertised lifetime I ...

Generally you see a light bulb and you think “yep, a light bulb.” But when you see an LED bulb, you might pause and say “wait, isn’t there more to an LED than there is to incandescents?” And you’d be ...

The numbers you see on the box don't always work out in real life. LED bulbs do last longer, but those claims about five to 10 years are estimates based on internal testing -- and companies are always ...

A new crop of LED light bulbs wants to combine modern technology with old-school looks. Here's what to look for as you pick one out. Originally hailing from Troy, Ohio, Ry Crist is a writer, a ...