Q: What CCT is pure white?

In the lighting industry , CCT is often used to describe the color temperature of light, that is, the color of the light emitted by the light. Generally speaking, lights with a color temperature below 3000K are considered "warm", and lights with a color temperature above 5000K are considered "cool". Natural white refers to 4000K, while pure white refers to 5000K.

Question 1

What CCT is pure white?

Accepted Answer

In the lighting industry, CCT is often used to describe the color temperature of light, that is, the color of the light emitted by the light. Generally speaking, lights with a color temperature below 3000K are considered "warm", and lights with a color temperature above 5000K are considered "cool". Natural white refers to 4000K, while pure white refers to 5000K.

Question 2

Which one is more brighter? 3000K or 6500K?

Accepted Answer

The relative color temperature is not directly related to the brightness of a light fixture. So why do many online opinions state that 6500K is brighter than 2700K or 3000K? ZGSM believes there are two main reasons for this perception: 1. High color temperature is associated with cool white light, which gives the impression of brightness. 2. According to the specifications of light sources, light fixtures with higher color temperatures often have a higher lumen output compared to those with lower color temperatures.

Question 3

What is the recommended CCT?

Accepted Answer

The recommended CCT (Correlated Color Temperature) can vary depending on the specific application and desired lighting effect. However, in general, for outdoor lighting such as street lighting, there are recommendations to not exceed a CCT of 3000K. Lower CCT values like 2700K and 2200K are often preferred. This is based on the concern that higher CCT light sources can disrupt animal circadian rhythms and increase sky brightness, as indicated by some environmental and astronomical organizations.

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LED Street Light

Solar Street Light

Led Flood Light

Solar Flood Light

LED High Bay Light

High Mast Light

LED Traffic Light

LED Tunnel Light

LED Garden Light

LED Canopy Light

Led Bollard Light

Lighting Accessories

Smart Systems

Simulation Design

Smart Financing