Because your engine is too hot.
or the light is broken.
The speed of light does not have a temperature.
Neither visible light nor ultraviolet light have high temperature, because temperature is associated with molecular movement and light is an electromagnetic wave or particle having no temperature. Infrared light is given off by matter that is raised to high temperature, but that is not the same as having temperature.
the temperature of a IR light is 6500 degrees fahrenheit
How does the angle of light affect the temperature of a surface?
why light spread causes different temperature
the temperature of a UV light is 10nm-400 degrees fahrenheit
it is light
Cold light
The oil temperature light usually means that the temperature of the oil has reached a dangerous point. The oil temperature light will alert the operator to turn off the engine.
engine coolant
For the temperature: thermometer.For the light: luxmeter.Moisture: hygrometer.Wind: anemometer.
Light, carbon dioxide concentration, and temperature.