How it works
Use a broad lumen-per-square-foot planning range, adjusted by room and preference.
Simple example
A 150 sq ft living room may aim for about 2,250 lumens at normal brightness.
Home Maintenance
Light Bulb Brightness Calculator
Plan approximate total room lumens.
Advertisement space
Common question
How many bulbs should I buy?
Compare total lumens on bulb labels; fixtures and natural light affect the result.
This is a planning estimate. Check product instructions, dimensions and site conditions before purchasing or building.