Why does the UV light tube on the Xiaomi Dust Mite Vacuum Cleaner turn black?
The blackening of the UV light tube on both sides is a normal phenomenon, similar to household light bulbs that darken after prolonged use.
For your reference, the reasons are as follows:
1. During operation, the temperature of the light tube rises, causing mercury vaporization, which deposits along the tube walls. Over time, this deposition becomes lighter until it disappears completely;
2. After the light tube is turned off and cools down, the condensed mercury leaves a darkened residue, which is a normal occurrence and does not affect the product's functionality.
If the light tube does not light up or operate properly, it is recommended to contact the local after-sales service center.
For your reference, the reasons are as follows:
1. During operation, the temperature of the light tube rises, causing mercury vaporization, which deposits along the tube walls. Over time, this deposition becomes lighter until it disappears completely;
2. After the light tube is turned off and cools down, the condensed mercury leaves a darkened residue, which is a normal occurrence and does not affect the product's functionality.
If the light tube does not light up or operate properly, it is recommended to contact the local after-sales service center.
Does it help?
Yes
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