High pressure sodium lamps

Efficient lighting is always an essential thing to save lots of money. Sodium vapor lamps are well known for there brightness. Sodium lamps are monolithic lamps which produce the sharper wavelength light which makes it more efficient. This is the reason why the street lamps are laid with the sodium vapor bulbs. They give more brightness and consume less power as well.LU400 is a high pressure sodium vapor lamp which has a very high temperature rating and also long working hours. These kind of bulbs are specially designed for the street posts which give extra brightness and less power consumption.