Learn the basics
Understand lumens, lux, colour temperature, CRI, beam angle and layered light.
Explore this path →Practical lighting with Ross
Better light,
explained.
Clear choices and useful numbers—from room brightness to bulb specifications and fixture placement.
No brand rankings. No mysterious rules. Just a clear planning method.
Start here
Choose a clear path into lighting.
Begin with definitions, find a room plan or browse the complete guide library.
Plan a room
Work from the activity, dimensions and surfaces before choosing fixtures.
Explore this path →Browse every guide
Find how-to, fixture, troubleshooting, technical and comparison guides.
Explore this path →Room by room
Light where life happens
Begin with the activity, then place light where it needs to land.
100–200 lux
Living room
Layer ambient light with reading and wall light.
Browse room guides →200–400 luxKitchen
Plan for worktops first, then the room.
Browse room guides →100–200 luxBedroom
Keep general light soft and bedside light useful.
Browse room guides →300–500 luxHome office
Balance desk, screen and background brightness.
Browse room guides →Room lumens calculator
Turn a room into a starting number.
This lumen-method estimate gives a planning range. It cannot account for every surface, shade or fixture optic.
“If a room feels gloomy, first check where the light lands.”— Ross's note
Latest guides
New from the library
Lighting fundamentals
Watts vs Lumens: How to Choose LED Brightness
Learn the difference between watts and lumens, estimate room lighting needs, compare LEDs and choose bulbs, fixtures and dimmers confidently.
Read guide →Lighting fundamentals
Foot-Candles Explained: A Practical Home Guide
Learn what foot-candles measure, how to estimate home lighting needs, choose bulbs and fixtures, measure results, and solve common lighting problems.
Read guide →Lighting fundamentals
Lux Explained: Measuring Light on a Surface
Learn what lux measures, how it relates to lumens and footcandles, and how to estimate, measure and improve useful light levels at home.
Read guide →The Ross Light method
Observe. Measure. Explain. Adjust.
- 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 colour deliberately.
Know the boundary
Planning is not electrical work.
Permanent wiring, load calculations, code compliance, wet-location work and uncertain faults belong with a licensed professional. Read the troubleshooting guides for safe first observations.