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 environments being different, actual lifespan is usually ≤30,000 hours. High-quality materials can help reach the 50,000-hour mark.
For same power, why do different suppliers have different brightness?
Brightness depends on the chips used and their version. Even with the same power, different chips produce different lumen outputs. It is important to distinguish between the brightness of the individual LEDs and the complete fixture.
What is colour temperature?
Kelvin is the unit to measure "temperature" of light. Lower temperatures (warm) are used for relaxation in public areas, while higher temperatures (cool) are used for concentration in offices.
What is CRI?
CRI (Color Rendering Index) is a figure that reflects how accurately the light source reveals the colors of objects compared to natural light. Higher CRI usually involves higher costs.
What is PF and efficiency?
PF (Power Factor) and efficiency indicate the electrical performance of the driver. Higher PF and efficiency lead to better energy conservation and higher component quality.
Can these lights be used in coastal areas?
With an IP66/IP65 rating and die-cast aluminum construction, these fixtures are designed to withstand outdoor conditions, providing durability against dust and water ingress.