The Kelvin scale ranges from 1,000 to 10,000 degrees Kelvin, with most LED bulbs residing within the 2,000K to 6,500K range.

Lighting hue is graded by the Kelvin scale—the lower the Kelvin number, the warmer the lighting will appear—and LED labels (like the one shown above) display this scale.

You might intuitively think that a higher Kelvin number corresponds to warmer light, but listening to your intuition would be a mistake. In fact, higher-energy light appears cooler.

Selectable wattage and selectable Kelvin in a classic style LED post light luminaire is a game changer for customers everywhere” ...

The new GAYAs also feature selectable Kelvin, which enables the color temperature of the light emitted to be determined with a simple flick of a switch. The lower wattage GAYA allows for a Kelvin ...

The entire Kelvin scale ranges from 1,000 to 10,000, but commercial and residential lighting ranges from 2000K-6500K. There are three main Kelvin tiers you’ll come across: ...

ZIKO LED wall packs feature selectable wattage and selectable Kelvin housed in a die-cast aluminum housing with a glare reducing opalescent polycarbonate diffuser lens.

The Kelvin rating of an LED bulb seems like a pretty innocuous, straightforward bit of information. In reality, it's important, as it can be quite helpful during the bulb purchasing process.