Lumen, watt, color temperature... What do these and other terms mean? Our Lighting Wiki is a quick and easy ’what’s what’ guide to lighting. It will help you to find the right light fixtures and bulbs for your home.
See how lumen indicates the amount of light that a bulb produces.
Learn about the differences between cap types and how to pick the right one for your light fixture.
Amount of Light
See how switch cycles indicate the lifespan of a bulb.
Wide and focused light
See how the shape of a bulb has a big impact on the light effect it delivers.
Watt and lumen
Learn more about the difference between watt and lumen and what it says about a bulb.
See how color temperature determines if a bulb produces warm or cool light.
Color Rendering Index
See how a high color rendering index makes colors appear natural.
See how long different bulbs take to reach their maximum light output level.