How-to
Bathroom Vanity Lighting: Fix Glare, Shadows and Color
Choose bathroom vanity lighting by the problem at the mirror: glare, face shadows or color. Compare light bars, side sconces, CRI and 3000K–5000K options.
Read guide →Dear reader,
Get the light right, room by room.
I'm Ross. I test lamps, measure the light they actually give off, and explain lumens, lux and color temperature in plain English, so you can plan each room with numbers, not guesses.
No brand rankings. No mysterious rules. Just useful numbers, visible assumptions and a clear planning method.— Ross
Room lumens calculator
Plan your room
This lumen-method estimate gives a planning range. It cannot account for every surface, shade or fixture optic.
Start here
Five ways in: basics, rooms, fixtures, tools and fixes.
Begin with definitions, find a room plan or browse the complete guide library.
Basics & Technical
What lumens, lux, colour temperature and the deeper specs actually mean
Rooms & How-to
Plan each room, then follow the steps to lay it out
Fixtures & Buying
Bulbs, fixtures, buying checks and side-by-side choices
Tools & Calculators
Get a number you can plan with, with the formula shown
Troubleshooting
Start with the symptom and change one safe thing at a time
Room by room
Light where life happens
Begin with the activity, then place light where it needs to land.
Living room
Layer ambient light with reading and wall light.
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Kitchen
Plan for worktops first, then the room.
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Bedroom
Keep general light soft and bedside light useful.
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Home office
Balance desk, screen and background brightness.
Read room guide →Latest guides
New from the library
How-to
How to Add Accent Lighting to a Room With One Ceiling Light
Turn a single-light room into a more comfortable space with plug-in lamps, wall lights or adjustable spots. Choose by outlet, glare and wiring needs.
Read guide →Room lighting
Bedroom Lighting Guide: Layout, Lumens and Fixture Plan
Plan bedroom lighting around your bed, reading position and route to the door, with a clear lumen example, fixture choices and usable bedside controls.
Read guide →The Ross Light method
Put light where you need it. Know how much to plan for.
- 01Start with the task.Identify what needs to be seen and where the light needs to land.
- 02Make assumptions visible.Show the inputs, formula, sources and important limits.
- 03Change one variable.Adjust brightness, placement, shielding or color deliberately.