How can a light bulb produce different colours of light?
In: Physics
For some light bulbs there are electronics inside supplying power to three different colored smaller “bulbs” that when applying varying power will shine brighter or dimmer. When these three colors are mixed with different ratios they can produce basically all colors. For classical bulbs you can use different materials for the light emitting wire and gas and glass and you are able to get slightly different colors as well.
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