What Size Vanity Light Should I Use for My Bathroom Mirror?
Bathroom Lighting Guide
Bicycle Glass Vanity Light Sizing Guide
Choosing the right vanity light size keeps your bathroom feeling balanced and bright. Use this guide to match the right fixture width to your mirror or vanity.
Quick rule of thumb
- Keep your vanity light narrower than your mirror.
- Aim for 70%–90% of mirror width.
- Center the fixture over the sink.
Bicycle Glass vanity fixture widths
| 2-Light Vanity | 16" wide |
|---|---|
| 3-Light Vanity | 22" wide |
| 4-Light Vanity | 30" wide |
Double vanity tip: one fixture or two?
Two separate mirrors: choose two 2-light fixtures, one centered above each mirror.
One long mirror: choose a 4-light fixture, centered across the full width.
What it looks like in real bathrooms
2-Light Vanity (16" wide)
Best for powder rooms, smaller mirrors, and compact single-sink vanities.
3-Light Vanity (22" wide)
Ideal for standard single vanities and mirrors in the 30"–36" range.
4-Light Vanity (30" wide)
Best for wider mirrors and larger vanities.
These are guidelines, not rules!
While this guide provides helpful sizing recommendations, it’s meant to be a starting point, not a strict rulebook. One of the best parts of thoughtful design is that there are no hard and fast rules! Some homeowners choose fixtures slightly smaller for a minimal look, while others go larger to create more presence. The result can be equally beautiful either way. Take these guidelines with a grain of salt, trust your eye, and follow your design intuition; your space should reflect what feels right to you.
Check out these "rule breaking" examples from real customers:
Want help choosing the right size?
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