When the lamp is turned on it emits a dim red pink light to warm the sodium metal and within a few minutes it turns into the common bright yellow as the sodium metal vaporizes. You can also choose from ce 400w low pressure sodium lamp as well as from high pressure sodium 400w low pressure sodium lamp and whether 400w low pressure sodium lamp is 1 year 2 year or 3 year.
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Low pressure sodium vapor lamp. Philips 321539 135 watt t15 sox135 low pressure sodium hid light bulb. A low pressure sodium vapor lamp or lpsv lamp is termed as a miscellaneous discharge lamp as it possesses some characteristics of high intensity discharge hid lamps as well as it resembles fluorescent lamps in other areas. The discharge tube may be linear sli lamp 2 or u shaped.
These operated at pressures of less than 1 pa and produced a near monochromatic light spectrum around the sodium emission lines at 589 0 and 589 56 nanometres wavelength. Vivosun 2 pack 600 watt high pressure sodium hps grow light bulb lamp high par enhanced red and orange spectrums cct 2100k ultra bright 90 000 lumens. Low pressure sodium lps lamps have a borosilicate glass gas discharge tube arc tube containing solid sodium a small amount of neon and argon gas in a penning mixture to start the gas discharge.
The low pressure sodium arc discharge lamp was first made practical around 1920 owing to the development of a type of glass that could resist the corrosive effects of sodium vapor. Basically an lpsv lamp is a gas discharge lamp that uses sodium in an excited state to produce light. A wide variety of 400w low pressure sodium lamp options are available to you such as lighting and circuitry design dialux evo layout and project installation.