Such a lamp can then be used for ultraviolet germicidal irradiation.
Low pressure mercury lamp.
A sodium vapor lamp is a gas discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm.
Right around 1900 the mercury arc rectifier was developed this luminous device was very important for power conversion.
Low pressure lp amalgam low pressure lp and medium pressure mp lamps are all mercury based lamps.
Since 1978 for a variety of applications such as.
They differ primarily by electrical excitation and ionization levels of the mercury within the lamp and corresponding internal pressures.
The power ratings are from 4 watt to 125 watts.
Low pressure and high pressure low pressure sodium lamps are highly efficient electrical light sources but their yellow light restricts applications to outdoor lighting such as street lamps where they are widely used.
Nyc subways were still using original mercury arc rectifiers to convert ac to dc power up until the end of the 20th century.
Amalgam lamps use less mercury than standard low pressure mercury lamps and are rohs compliant.
Two varieties of such lamps exist.
The higher efficiency of the amalgam lamps allows less lamps per system or lower wattage lamps in the system while achieving the same results as standard low pressure mercury lamps.
Hach replacement uv for toc analyzers arc imaging chromatography photochemistry calibration of uv detectors calibrations of spectrophotometer and more.
Low pressure mercury vapor lamps usually have a quartz bulb in order to allow the transmission of short wavelength light.
The low pressure uv lamps also called germicidal lamps exploit uvc light to get the rapid sterilization of bacteria molds fungi viruses and microorganisms both in air and in water in this category of lamps about 40 of electricity is converted directly into uvc radiation with monochromatic emission at 254 nm for germicidal applications and at 185 nm for the oxidation of surfaces.
Amalgam lamps use a mercury amalgam mix to control mercury vapor pressure.
Low pressure mercury lamps have been manufactured in jelight company inc.
The average life of tube lights is about 5000 hours and also.
Ushio germicidal lamps are low pressure mercury arc lamps that emit radiation peaking at 253 7nm uv c.
These early low pressure lamps used a lot of mercury today s lamps use a tiny amount of mercury.
If synthetic quartz is used then the transparency of the quartz is increased further and an emission line at 185 nm is observed also.
Life time of the amalgam lamps are in excess of 12 000 hours with.
Designed by experienced engineers and by using quality material in combination with a tightly controlled manufacturing process we provide high quality lamps free of impurities to maintain strong and stable output throughout life of the lamp.
They are available in lengths from the very small of 150 mm to up to 2400mm.
