Outdoor sodium lights are either low pressure or high pressure lighting to illuminate large areas with bright light.
High pressure sodium lights troubleshooting.
Typically these lights are used on sides of industrial buildings and in some street lamps.
This is one of the most serious maintenance problems in an hps lighting system.
They are also commonly found in an indoor garden setting.
They emit bright yellow light.
High pressure sodium hps lights are commonly used for outdoor application like parking lot lighting street lights etc.
Lamps should be checked to be sure the proper lamp type is being used according to the information on the label of the installed ballast.
Many lamp types currently offered such as metal halide and high pressure sodium lamps are physically interchangeable but not electrically interchangeable.
Correcting problems with hps lamps by erik runkle and bruce bugbee high pressure sodium lamps are widely used in greenhouse production but they require maintenance for peak efficiency.
The heavy duty transformer or ballast is also long lived if the bulbs are changed out before they burn out.
Sodium bulbs can last up to 20 000 hours.
This type of lighting is effective as a security light with a photocell to.
An indication of the high pressure sodium hps lamp s normal eol is on off cycling since the aging lamp requires a higher voltage for operation than the ballast can supply.
Hps fixtures quickly picked up speed and by 1970 many parking lot lights and street lights were adopting the new lighting technology.
These lamps reduce growth and increase electric consumption.
The hps light fixture was developed by general electric and made its debut in 1964.
A high pressure sodium ballast is responsible for regulating the pressure in light fixtures that use high pressure sodium gas to produce the light.
The cycling can damage or destroy the starting circuit and or ballast.
These types of lights are commonly found outside.
I have a 150 watt high pressure sodium security light that mysteriously began cycling on and off about a month ago after about three years of faithful operation.
Thought the photoelectric cell.
After visual inspection many growers find that some lamps in their greenhouse either aren t operating or aren t doing so at full brightness.
They are used for things such as security lighting.