Whether the LED lights really have 50,000 hours lifespan?
50,000 or longer lifespan is only theory from lab test. But due to working environment being different from the lab, actual lifespan is usually <=30,000 hours. Meanwhile, it can reach 50,000 hours if it adopts high-quality materials.
For the same power, why do different suppliers have different brightness?
Different chips, or the same chip but different brightness versions, will result in different brightness. For the same chip and brightness version, the difference will be slight. Please distinguish between the brightness of the LEDs and the lamp fixture.
What is colour temperature?
Kelvin is a way to measure "temperature". LED lights emit a certain color categorized in CCT (Kelvin). For example, warmer light (lower CCT) is used in public areas for relaxation, while cooler light (higher CCT) enhances concentration in offices.
What is CRI?
CRI (Color Rendering Index) is a figure that indicates how accurately the light displays real object colors. Higher CRI typically comes with higher costs.
What is PF and efficiency?
PF (Power Factor) and efficiency measure the electrical performance of the driver. Higher PF and efficiency ratings generally indicate better quality and higher cost.
Guangyao Lighting
