Dimmable & Memory] The brightness of this modern mirror is dimmable, touch the light button for 1 second to turn the mirror light on/off. Touch the light button for 3 seconds to adjust the brightness of the mirror (10%-100%). When the LED mirror is restarted after a power failure, it will return to the last use without having to adjust again. [Defogging design] LED mirror's light and anti-fog are controlled separately. Defogging is turned on by default when the power is turned on, if not needed, just click the defogging button to turn off. To avoid overheating of the mirror due to long time use of defogging, defogging will automatically turn off after one hour of continuous use, then you need to click the defogging button to turn on the defogging function again. [Plug or Wall Switch] Our mirrors support normal wall switch control and can be connected using plugs or hardwired. With a variety of styles and sizes to meet the needs of different rooms. Can be installed in bathroom, checkroom and the room you want to install.Only plays an auxiliary role in the brightness of the room, and is not recommended as a separate lighting. [3 year warranty] Full refund or free replacements for led mirrors damaged on arrival, no return needed, what you need to do is sending us some pictures via Amazon. We are constantly improving the craftsmanship and packaging of our mirrors to ensure that our mirrors reach our customers intact. Please don't hesitate to get in touch if there's anything we can help with you. [Packaging & Waterproof] Newly improved packing greatly reduces damage during transportation. Keonjinn led mirrors have passed all tests including dropping test, impact test, heavy pressure test etc. The LED mirrors feature waterproof and moisture-proof backing, IP54 rate to ensure safe lighting in wet bathroom environments.