The dimensions for the opening required for recessed installation are: 19 1/4 x 25 1/4 x 4 3/8"

A wonderful bathroom medicine cabinet with a backlit mirror that provides uniform and optimal bright lighting.

Bathroom medicine cabinet with mirror can eliminate harsh shadows and hot spots while you are tidying up, plucking, shaving, brushing your teeth, or putting on makeup.

The dimming function allows you to better control the lighting and room atmosphere, making daily grooming more comfortable and easier than ever. The lighted mirror and medicine cabinet can adjust the shelves at will, bid farewell to the messy bathroom, and let it become the queen's private space. The rust-free aluminum construction is durable and moisture-proof, which makes it a wise choice for your bathroom.
Features

• Tri-Color LED Dimmable Work Light: Equipped with a touch screen button, this light allows for color temperature adjustments ranging from 3000k to 6000k, with brightness adjustable from 1370 lumens to 3000 lumens, tailored to your cabinet style and size. 
  
• Waterproof Design with Defogger: Ensures a high-quality experience with fog-free mirrors, enhancing your daily routine. 
  
• Convenient In-Cabinet Outlets: Perfect for powering electric toothbrushes, razors, curling irons, and more, adding to your convenience. 
  
• Installation Hardware Included: Comes with mounting hardware suitable for both surface and recessed installation.
  
• Quiet Operation: Features specially designed hinges that allow the cabinet to open and close slowly, prioritizing safety and care. 
  
• Adjustable Storage: Three tempered glass shelves are thoughtfully partitioned to maximize storage capacity efficiently. 
  
• Eco-Friendly Mirror: A high-quality, copper-free mirror that reflects an accurate image, ensuring clarity and environment responsibility.