Optometrist Rachael Smith said customers frequently complained about discomfort from headlights Ms Smith said when a person was dazzled by a bright light ... at the blue and white end of the ...

Using only an ultra-bright white LED, red blinking LED, PNP transistor, and a diode, the circuit gives a strong visual indication of current consumption by blinking brighter and more frequently as ...

Lead researcher Dr Tim Brown said the findings matched what happened in the natural world, with bright, warm daylight. "During the daytime, the light that reaches us is relatively white or yellow ...