WEIFANG, SHANDONG, CHINA, January 21, 2026 /EINPresswire.com/ -- 1. Rising Global Demand for PDT LED Light Therapy As ...

Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's actually a good idea.

Few talked about solid-state lighting -- known as light emitting diodes or LEDs --except as futuristic technology that would probably come of age in 2020 and beyond. Most consumers considered them ...