I don't know if this has been invented yet... I haven't come across it, but I think it would be REALLY cool if there was a faucet that can change colours (according to the temperature of the water)
e.g. red led light on water when water is hot
blue led light ... cold
purple (?) led light when water is warm
... when water is cool
*I know that LED faucets exist, but they only seem to produce random colours...(?)
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