Choosing a plug in light bulb can seem simple until you’re faced with different colour temperatures, brightness levels and bulb types. A small change in light can make a room feel warmer, brighter or more practical, depending on what you choose. That matters more than you might think. The right colour temperature can influence how comfortable a living room feels in the evening, how clearly you see while working or how inviting a space looks when guests arrive. For homeowners replacing an old bulb or upgrading to LED plug-in bulbs, picking the right option isn’t simply about finding one that fits the socket. If you’re confused about where to start, then understanding colour temperature is a good first step. Once you know what the different Kelvin ratings mean and how they suit different spaces, choosing a plug-in light bulb becomes much easier.