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Frequently Asked Questions
Q: Do these LED lights really have a 50,000-hour lifespan?
A: A 50,000-hour or longer lifespan is a theoretical value from lab testing. In practical environments, the actual lifespan is typically around 30,000 hours, though it can reach 50,000 hours with premium grade materials.
Q: Why do different suppliers offer different brightness for the same power?
A: Brightness varies depending on the chip brand or the specific brightness bin of the same chip. It is also important to distinguish between the raw brightness of the LEDs and the actual output of the lamp fixture.
Q: What is Colour Temperature (CCT)?
A: Kelvin (K) measures the color of the light emitted. Warmer light (lower Kelvin) is often used in public areas for relaxation, while cooler light (higher Kelvin) enhances concentration in office or work environments.
Q: What does CRI stand for?
A: CRI (Color Rendering Index) represents how accurately the light reveals the real colors of objects. Higher CRI provides better color accuracy but generally comes at a higher cost.
Q: What are PF and Efficiency in LED drivers?
A: Power Factor (PF) and efficiency indicate the electrical performance of the driver. Higher values mean better energy conversion and higher electrical quality.
Q: What is the surge protection capability of these lights?
A: Depending on customer requirements, these street lights can be equipped with 4-6KV, 10KV, or 20KV surge protection to ensure durability against voltage spikes.