Outdoor areas that rely on superior lighting design for increased safety and efficiency, commonly are streets, lanes, parking lots and pedestrian zones. In outdoor lighting, LED lighting is rapidly becoming a strong contender for high-intensity discharge lamps (HIDs). What are the main considerations towards LED and HID outdoor lighting sources, as well as outdoor space lighting design.
Q: outdoor lighting, how to measure color? What is the scope of outdoor lighting?
A: The industry standard tends to have a correlated color temperature (CCT) of 4000K and a color rendering index (CRI) of 70. The acceptable range is usually CCT3000K-5000K with a CRI of 70 or 80.
Q. What is the difference in design between street lighting and parks or other outdoor space lighting?
A: Each application represents a different set of vision tasks that need to be addressed by applying design and optics. Different environments have different requirements on safety, marking and speed of identifying objects.
Q: When planning outdoor lighting design, what factors should be considered?
A: The planning of outdoor lighting design, we must consider the following five points:
1. Consider the visual tasks needed to navigate or take up space;
2. Determine the level of lighting and consistency required to carry out the task;
3. To ensure the overall lighting lumen output and installation of height, in order to reduce glare and improve visibility;
4. Respect land red line, reduce light invasion;
5. To prevent light pollution, choose a light fixture that minimizes light on the horizon.
Q: What is the role of light distribution and glare in outdoor lighting design?
A: Careful selection of the lighting distribution will help ensure that the visual environment illuminates evenly and the luminaire distributes light at a sufficiently low angle to prevent overshooting and glare. This increases visibility and security.
Q: Which is better energy efficiency performance lamp in terms of HID lamp or LED? Why is this important for outdoor area lighting?
A: LED lighting is already more efficient than HID lamps in terms of energy consumption and light utilization, reducing the cost of ownership per lighting lumen. Today, the market for LED light source education more in-depth, so that end-users can safely choose LED lighting.
Q: Is lumen maintenance a concern for any light source? How does LED's durability affect outdoor lighting?
A: The lumens maintenance of HID lamps requires lamps to be replaced every three to five years. In contrast, LED lamps can be extended to more than 20 years. LED failure rate is low, lumen maintenance rate is low, extending the replacement lamp maintenance cycle, reducing maintenance costs.
Q. In general, HID lamps or LEDs, which lighting in outdoor areas are more cost-effective?
A: Modern LED lighting provides control options that turn off lighting or reduce power when lighting is not needed, saving both energy and the environment. If you also consider the low cost of ownership, then the LED is a better choice.