燈泡k是什麼意思

"K" in the context of a light bulb typically stands for "Kelvin," which is a unit of measurement used to describe the color temperature of light. The color temperature is a characteristic of light that determines the appearance of the light emitted by a bulb, ranging from warm and yellow (around 2,700 K) to cool and blue (around 6,500 K or higher).

Here's a general guide to the color temperature of light bulbs:

• Warm White: Around 2,700 K to 3,000 K. This light appears yellowish and is often used in homes for a cozy and relaxing atmosphere.
• Bright White: Around 3,500 K to 4,100 K. This light is slightly cooler and whiter than warm white, providing a balance between a warm and a cool appearance. It's often used in areas where tasks need to be illuminated but still maintaining a comfortable ambiance.
• Daylight: Over 5,000 K. This light appears blueish-white and is closest to natural daylight. It's often used in work spaces, offices, and areas where precise color rendering is important, as it enhances contrast and makes it easier to see subtle variations in color.

When choosing a light bulb, you may see options like "2,700K," "4,000K," or "6,500K," which refer to the color temperature of the light emitted by the bulb. The higher the Kelvin rating, the cooler and bluer the light will be. Conversely, the lower the Kelvin rating, the warmer and yellower the light will be.

It's important to note that the color temperature can significantly affect the mood and atmosphere of a space, so choosing the right Kelvin rating for your needs is essential.