With an eerie, robot-like appearance and an otherworldly glow when worn, those LED masks all over your FYP give off a science-fiction vibe. Fittingly, it was researchers with NASA who discovered ...

Many LEDs are dimmable, and some have daylight and motion sensors. You can also find solar-powered LED outdoor lighting. LED bulbs contain no hazardous chemicals such as mercury, lead, and cadmium ...