Lots of different sources produce light. Earth's main source of natural light is the Sun. At night, moonlight is created by the moon reflecting the Sun's light. This allows us to see at night ...

White light-emitting diodes (LEDs ... eventually becoming a uniform natural white (a colour temperature of 6,000 K) at drive currents of 20 mA and above.

Lasers, LEDs and light sources are devices that create light. LEDs (light emitting diodes) convert an electrical current into light using spontaneous emission in optically active semiconductors.

Too much light can wash out a TV, create glare, or distort finer details. It can also distract and take away from the mood; it's just not as much fun watching a scary movie in a bright space as it is ...