Because LED and high pressure sodium lamps are better than low pressure sodium lamps. Low pressure sodium lamps are not as good as them for the following reasons:
- Световая эффективность: The efficiency of low pressure sodium lamps is about 50-100 лм/Вт, which is lower than that of LED lights.
- ЦНИИ: Low pressure sodium lamps have a low CRI and emit yellow light. This light cannot provide clear vision.
- Starting time: Low pressure sodium lamps have a long starting time, который может быть 30 минуты. Однако, LED street lights can turn on instantly.
Больше чтения: Светодиодные уличные фонари против уличных фонарей HPS: Что лучше в 2023?
