Whether the LED lights really have 50,000 hours lifespan?
50,000 or longer lifespan is only theory from lab tests. Due to different working environments, actual lifespan is typically ≤30,000 hours. However, adopting premium materials can help achieve a 50,000-hour lifespan.
For same power, why do different suppliers have different brightness?
Different chips, or the same chip with different brightness versions, will result in different lumen outputs. It is also important to distinguish between the brightness of individual LEDs and the final lamp fixture.
What is colour temperature (CCT)?
Kelvin is used to measure light "temperature". Warmer light (lower Kelvin) is often used in public areas for relaxation, while cooler light (higher Kelvin) enhances concentration in professional or sports environments.
What is CRI?
CRI (Color Rendering Index) is a figure that reflects how accurately a light source reveals the true colors of objects. A higher CRI typically involves higher manufacturing costs.
What is PF and efficiency?
PF (Power Factor) and efficiency represent the electrical performance of the LED driver. Higher PF and efficiency ratings indicate better performance and usually come with a higher cost.