💡 Lighting, Energy & Eco Living
LED Kelvin Color Temperature Guide
Choose between warm 2700K and daylight 4000K bulb ratings based on the mood you actually want in the room. Pick your space and how you use it, and get the exact Kelvin number to look for on the box.
1800K Candlelight
6500K Daylight
2700K
| Kelvin | Celsius | Common name | Best used in |
|---|
Energy & Eco Tip
Kelvin rating is only about color, not energy use, so you can pick any mood you want without an efficiency trade-off. An LED bulb uses roughly 75 percent less electricity than an old incandescent bulb at any color temperature, and typically lasts 15 to 25 times longer, so the real eco win is choosing LED at all, not which Kelvin you land on.
Frequently Asked Questions
Use Our Other Tools
Got your Kelvin sorted? These help you finish the lighting plan.
Explore All Tools →