Photons, obviously, can't be hot or cold - light is just another form of energy. Light can travel through a hot environment, but can't be hot or cold itself.
Bioluminescence is called cold light because less than 20% of the light generates thermal radiation, or to say in simpler terms, heat. So, the less thermal radiation there is, the colder it will be.
Tubelights are considered a cold source of light because they emit light through fluorescence. The fluorescent coating inside the tube absorbs ultraviolet light produced by the energized mercury vapor, causing the coating to fluorescence and emit visible light. This process does not produce excess heat compared to incandescent bulbs, making tubelights a cooler light source.
Moonlight appears cold because it reflects sunlight, which is a much warmer source of light. The moon itself does not produce any heat, so the light it reflects does not carry any warmth with it. This can create the perception of moonlight being cold compared to direct sunlight.
Without the sun's heat and light, the Earth would be extremely cold, with temperatures dropping to around -430 degrees Fahrenheit (-257 degrees Celsius).
Tube lights are considered a cold source of light because they produce minimal heat compared to other types of lighting such as incandescent bulbs. The majority of energy from a tube light is converted into light, with very little energy wasted as heat. This makes tube lights more energy-efficient and cooler to the touch during operation.
Cold Light was created in 2004.
The Cold Light of Day was released on 09/07/2012.
The Production Budget for The Cold Light of Day was $20,000,000.
Cold Spring Harbor Light was created in 1890.
The Cold White Light was created on 2002-05-13.
Cold light
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Because almost no heat is produced during this reaction. That is why it is often called "cold light".
The Cold Light of Day grossed $3,763,583 in the domestic market.
The cast of Cold Light of Day - 2003 includes: Alan McCafferty
The Cold Light of Night - 2012 was released on: USA: 3 April 2012
Light is due to electron transitions in atoms.