1. The brightness of an LED directly affects its price. High-brightness LEDs used in lighting fixtures must meet the laser class I safety standard to ensure user safety and performance.
2. Anti-static capability is a key factor in determining LED quality and cost. LEDs with strong anti-static protection (typically over 700V) tend to last longer, making them more expensive but more reliable in various environments.
3. LEDs with the same wavelength produce the same color. Ensuring consistent color output requires precise manufacturing, which many manufacturers lack without spectrophotometers. This makes high-color-consistency LEDs more costly and harder to produce.
4. Leakage current occurs when reverse voltage is applied to an LED, which can damage it over time. LEDs with high leakage current have shorter lifespans and are generally cheaper, but less durable.
5. The illumination angle of an LED determines how light spreads. Special angles like full diffusion are more complex to manufacture and thus command higher prices. These are often used in specific lighting applications for better coverage.
6. The lifespan of an LED is determined by its light decay rate. LEDs that maintain brightness longer have a longer life and are more expensive. This is especially important in long-term lighting solutions.
7. The quality of the wafer used in LEDs varies greatly. Wafers from Japan and the U.S. are typically more expensive due to advanced technology and strict quality control, while those from Taiwan and China are more affordable but still reliable.
8. Larger wafers generally result in higher-quality LEDs. The size of the wafer affects both performance and cost, with larger sizes often leading to better efficiency and higher prices.
9. The encapsulation material of an LED plays a role in its durability. Standard LEDs use epoxy resin, but those with UV-resistant and flame-retardant properties are more expensive. For outdoor use, these features are essential for longevity and safety. Additionally, LED lighting design must consider electrical, fire, environmental, mechanical, health, and usage safety standards. Compliance with international and national regulations ensures safer and more reliable products.
An electric actuator is a device that converts electrical energy into mechanical motion. It is used to control the movement of various mechanical systems, such as valves, dampers, and other industrial equipment. Electric actuators are commonly used in industrial applications where precise positioning, speed control, and high accuracy are required. They are also used in the automotive industry, aerospace industry, and medical equipment. Electric actuators are available in different types, including linear actuators, rotary actuators, and multi-axis actuators. They can be powered by AC or DC power sources and can be controlled by various types of controllers, such as programmable logic controllers (PLCs) and human-machine interfaces (HMIs).
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