Nichia has created an led with the feel of HPS (high-pressure sodium) lighting, it claims. Nichia: HPS lighting can create a nostalgic or elegant atmosphere “Global efforts to phase-out the use of HPS continue to be met with a resistance to using white LED replacements. Due to this lack of a viable and sustainable alternative, …
This story continues at Nichia replaces high-pressure sodium lighting with leds
Or just read more coverage at Electronics Weekly