Posts Tagged ‘HPS’

High Pressure Sodium HPS

Monday, February 9th, 2009

High pressure sodium or HPS bulbs are smaller than Low Pressure Sodium Lamps and contain some elements such as mercury, and have a dark pinkish light when first started, and a pinkish orange glow when they are warm up’d. Some HPS bulbs can momentarily produce a pure to bluish white light in between starting and [...]