The advent of LED lighting in the past few years has now matured to the point where sweeping changes exist in the way we think about illumination. LED lighting was once the darling of scientists and ...

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 ...