Has this ever happened to you? You buy a bulb, install it in, switch it on, and instantly hate the color of the light our website. The problem is often color temperature, and that's quite common with LEDs because the number of options is so broad.
The scale is measured in Kelvin, and at about 2700K, the light is soft yellow, similar to an old incandescent bulb. Around 4000K, the light becomes neutral white. Move up to 5000K or 6500K, and the light begins to feel brighter and cooler, similar to the way midday sunlight appears on a cloudless day.
Both the bedroom and living room generally work well with warm white at around 2700K-3000K. The softer glow in this spectrum feels warm and calming, making it ideal for winding down in the evening. Use a cooler temperature here and the room can start to feel more like an airport lounge.
Kitchens and bathrooms are often better with 3500K–4000K. When you're cooking, you want to make sure you can see details properly while chopping ingredients. In the bathroom, you're applying makeup and want to see pores, blemishes, and smudges clearly in the mirror. A neutral white color temperature provides good visibility without feeling too harsh.
Home offices and garages can benefit from brighter and cooler lighting, typically 5000K and above. This is often described as daylight. Higher color temperatures can help support concentration when completing tasks and may also reduce visual strain.
Light output is another important factor. Focus on lumen output, not wattage. As a general estimate, 800 lumens can replace the equivalent of an old 60W incandescent bulb in many table lamps. Reading areas typically need between 450 and 800 lumens, while a kitchen ceiling might require 1500+ lumens distributed across the entire room.
Another factor that many people forget when switching to LED bulbs is the Colour Rendering Index, commonly called CRI rating. A 90 or higher CRI provides a natural appearance for skin tones, food, and fabrics. LEDs with a lower CRI rating can make red clothing appear muted or brownish.