How many lumens does your room actually need?
Lumens measure brightness, watts only measure energy. Pick your room, set its size, and get a target to shop by, with the right colour temperature for the mood.
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Drop your email and we'll send the plan for your living room of 20 m² (3,000 lumens), plus a custom offer on the lights to match.
Lumens, answered
How many lumens do I need per square metre?
It depends on the room: around 150 lumens per m2 for a relaxed living room or bedroom, and 300 or more per m2 for kitchens, bathrooms and workspaces where you need brighter, clearer light. Use the calculator above for your exact room.
What is the difference between lumens and watts?
Lumens measure how bright a light is; watts measure how much energy it uses. Older bulbs were sold by watts, but with efficient LEDs the same brightness uses far fewer watts, so lumens are the number to shop by.
What colour temperature should I choose?
For living rooms, dining rooms and bedrooms, warm white around 2700 to 3000K is cosy and flattering. For kitchens, bathrooms and offices, a neutral 3500 to 4000K feels cleaner. Havelalights ships most lights with a warm-white LED around 3000K.
Do Havelalights come with bulbs?
Almost every Havelalights light ships with a dimmable warm-white LED bulb (around 3000K) and the mounting hardware included, so it is ready to use. Anything different is noted on the product page.
Why split the lumens across several lights?
A single bright ceiling light flattens a room. Spreading your target across two or three sources, ambient, task and accent, gives depth and lets you dim layers for different moods.
Understanding lumens
How many lumens do you actually need?
Lumens measure how bright a light is, so they are the number to shop by. As a rule of thumb you want around 150 lumens per square metre in a relaxed living room or bedroom, and 300 or more per square metre in kitchens, bathrooms and home offices. Multiply your room size by that figure to get a target, then spread it across two or three fittings for depth.
Lumens versus watts
Old bulbs were sold in watts, which only measure energy use. With modern LED lighting you get the same brightness for a fraction of the watts, so a warm 8 watt LED can replace a 60 watt incandescent bulb. Shopping by lumens keeps you focused on the light you actually see, not the energy the bulb draws.
Choosing colour temperature
Colour temperature, measured in Kelvin, sets the mood. Warm white around 2700 to 3000K is cosy and flattering for living and dining rooms and bedrooms, while a neutral 3500 to 4000K feels cleaner in kitchens, bathrooms and workspaces. Havelalights ships most lights with a dimmable warm-white LED around 3000K.
Light your room in layers
One bright ceiling light rarely flatters a space. Combine an ambient layer such as a pendant or chandelier with task lighting like a floor lamp or lights over a kitchen island, and a soft accent layer of wall lights and low lamps. Put the layers on dimmers to take the room from bright and practical to warm and relaxed.
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