Lumens vs. Watts: How to Choose the Right LED Brightness
Watts measure energy use, not brightness. Learn what lumens actually tell you, see a lumens-to-watts chart, and find out how many lumens your room needs.
Practical home lighting
Light every room the way it is actually used
Lumen & Room helps you plan, arrange, and choose lighting room by room — so a kitchen counter, a reading chair, and a hallway each get the light they actually need, instead of one bulb trying to do everything.
Three ways to start
However you like to plan, there is a starting point here.
1
Choose a room
Start from a specific room — living room, kitchen, bedroom, bathroom, and more — and get a concrete lighting plan for it.
2
Learn lighting basics
Understand lumens, color temperature, CRI, and the three-layer model before you buy anything.
3
Build a lighting plan
Answer a few questions in our planner and get an estimated lumens range and layer split for your room.
Explore by category
Nine categories covering every part of planning a room's lighting.
Lighting Basics
The core ideas behind residential lighting — lumens, watts, color temperature, CRI and the three layers of light — explained without jargon.
5 guides
Room-by-Room Lighting
Practical lighting plans for the rooms people actually live in, from the living room and kitchen to the bedroom, bathroom and dining room.
5 guides
Small Spaces
Lighting strategies for studio apartments, hallways, closets, low ceilings and multipurpose rooms where every fixture has to work hard.
5 guides
Work and Reading
Lighting setups for home offices, desks, video calls, reading corners and hobby workspaces where visual comfort affects focus.
5 guides
Color and Atmosphere
How warm and cool light, dimmers and glare control shape the mood, color and comfort of a room.
5 guides
Bulbs and Fixtures
Clear comparisons of bulb shapes, fixture types, under-cabinet lighting, lamps and smart lighting features.
5 guides
Energy Efficiency
How LED lighting, controls and daylight work together to reduce energy use without compromising comfort.
5 guides
Layout and Organization
Organizing lamps, cables, furniture and zones so that a lighting plan is tidy, flexible and renter-friendly.
5 guides
Maintenance and Safety
Keeping LED lighting safe and reliable over time — bulb matching, flicker, heat, damp locations and responsible disposal.
5 guides
Essential guides
A good place to start if you are not sure where to begin.
How to Plan Living Room Lighting
Learn how to layer ambient, task, and accent lighting in a living room, with real room dimensions, fixture counts, and dimming tips for every activity.
Kitchen Lighting Guide: Counters, Islands and General Light
A practical kitchen lighting guide covering ambient, task, and under-cabinet light, with real counter and island examples and fixture spacing tips.
LED Color Temperature Explained: Warm, Neutral and Cool Light
Understand the Kelvin scale behind warm, neutral, and cool LED light, and learn which color temperature fits each room and mood in your home.
Ambient, Task and Accent Lighting: How the Three Layers Work
Learn the three layers of residential lighting design — ambient, task, and accent — and how combining them creates a more comfortable, flexible room.
How to Perform a Home Lighting Audit
A step-by-step walkthrough for auditing the lighting in your home, from bulb types and fixture condition to controls and daylight use.
Try the lighting planner
Answer three quick questions and jump straight into a full plan.
Essential concepts
The handful of ideas that make every lighting decision easier.
How this site works
What to expect from our guides and our planner tool.
How we research
Our general guidance draws on public resources from organizations like the U.S. Department of Energy, ENERGY STAR, and the Illuminating Engineering Society. See our sources and methodology.
The planner gives estimates
The lighting planner produces a general planning range based on your room's size and your answers — not a precise, professional lighting calculation.
When to call a professional
Any new wiring, new fixtures, or electrical work belongs to a licensed electrician. Our guides tell you clearly when that applies.
Specs change over time
Bulb shapes, fixture standards, and product availability shift. Always confirm current specifications before you buy.