The light output скачать в хорошем качестве

The light output

The light output The light output is a value, characterizing the artificial sources of light. It is the ratio of the light current, produced by the source to the value of the power consumed. The light current is measured in lumens. This value characterizes the light energy of th current. Sometimes it is called the power of illumination. Correspondingly, its value, divided by the power consumed, determines the light output. So, the light output is something like the coefficient of efficiency of the light current. The light output is measured in lumens per watt and characterizes the economy of the light sources. In relative values this is the energy spent on the illumination, minus heat and other losses. For various sources this value may differ. For instance, the 100-watt incandescent lampДля has the light output of about 14 lumens per watt. In the relative value just 2% of the energy spent is spent on illumination. That is why sources of light with a higher level of light output are being implemented all over. For instance, the energy saving lamps have the level of light output 10 times higher.