Benefits. It is a gas-discharge lamp that uses sodium in an excited state to produce light. High pressure sodium lights are used for illuminating large outdoor areas. This emission is quite close to the maximum luminous efficiency function at 555 nm and hence contributes effectively to the luminous efficacy. This wavelength corresponds to yellow light. Sodium Vapour Lamps. These lamps are used for gen-eral lighting applications where high efficiency and long life are desired, but color is not critical. High Pressure Sodium lamps deliver more lumens per watt over rated life than most other HID light sources available today. Base type. E27 E40 GX12 PG12-1 RX7s-24. This causes the valence electron of the sodium atoms to excite to higher energy levels. Low-pressure sodium lamps require a number of parts each working in tandem for the lamp to produce light. We get many phone calls from business owners needing our assistance with fixing and/or replacing their high pressure sodium light bulbs for parking lot lights and street lights. Home / Electrical Articles / Working principle of sodium vapour lamp. Top brands include Osram, Philips and Venture Lighting. It can come in a high pressure or low pressure format. SALE | Get up to 60% off. There are two types that exist (low pressure and high pressure), the difference being low pressure starts to ignite a lot slower than high-pressure SON lamps and goes through a phase of looking pink through to orange in colour. Crompton Lamps Son-E 70W Plus ES High Pressure Sodium Internal Ignitor, E27, 70 W [Energy Class A+] Visit the CROMPTON Store ... High pressure sodium vapor Cap Type E27 EU Energy Efficiency Label A+ Luminous Flux 6270 Lumen Wattage 70 watts Colour Temperature 2000 Kelvin Average Life 28000 Hours Average Life 28000 Hours Bulb Diameter 72 Millimetres Lamp Power … A typical high pressure sodium lamp will last longer than a metal halide lamp of similar wattage. 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. High-pressure sodium-vapour (HPS) lamps have an inner discharge tube made of translucent alumina that can withstand the corrosive effects of a mixture of mercury and sodium under greater pressure and higher temperature. Clear tubular outer bulb. 13.2. Lights & Lighting » Light Bulbs » Gas Discharge Lamps » Sodium Vapour Lamps. Before we begin, the terms bulb and lamp are used interchangeably when living in this bulba-verse. Shop high pressure sodium vapour lamps now! High luminous efficacy. While upgrading to LED provides a lot of benefits, high pressure sodium (HPS) lamps still provide some of the most efficient lighting available. SON lamps (sodium vapour lamp) is a gas discharge lamp that uses sodium to produce light via wavelengths. They are also commonly found in an indoor garden setting. Reference work entry. Sodium bulbs can last up to 20,000 hours. There are high-pressure sodium lamps (HPS), and low-pressure sodium lamps (LPS), but they function in a similar fashion. Due to the low color spectrum on high pressure sodium lights, the light emitted is limited to a warm deep yellow light. This test is used to determine if an item can be managed as hazardous They emit bright yellow light. The RS range of HID lamps includes metal halide and ceramic metal halide (including shatter resistant), high pressure sodium (SON) and low pressure, sodium (SOX) and mercury vapour. High Pressure Sodium lamp with clear tubular outer bulb. The heat generated by the arc then vaporizes the mercury and sodium. Ballast for the lamp to provide a high starting voltage, lamp conduction. While many applications are ideal for Mercury vapor lamps, they are being challenged by the higher efficiency and better color balance of metal halide and ceramic metal halide lamps, and LED … The box is rectangular in shape and provided with slits on three sides equally spaced to enable three experiments to be performed simultaneously using one light source, Each slit is provided with a cover so that it can be closed when not required Categories Filter / Sort. High-pressure sodium (HPS) lamps are smaller and contain additional elements such as mercury, and produce a dark pink glow when first struck, and an intense pinkish orange light when warmed. Total luminous flux — Apply Reset filters . SON-T is a cost-efficient and reliable solution in High Pressure Sodium. The use of a counter electromotive force of the ballast, with Lenz's law explanation is that acts in the moments before the other pipe lighting. Outdoor sodium lights are either low-pressure or high-pressure lighting to illuminate large areas with bright light. Typical applications include street lighting, parking lot light- ing, building floodlighting and general area lighting. Light up your warehousing, sports halls, stadium, car parks and shops with bright, energy saving light today from RS. Accordingly, how does a low pressure sodium lamp work? A very first appearance at a circuit diagram could be confusing, however if you could review a subway map, you can check out schematics. Sold Individually. Some bulbs also briefly produce a pure to bluish white light in between if the mercury achieves its high pressure arc discharge characteristic before the sodium is completely warmed. 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. 1 Citations; 2.8k Downloads; Abstract. High pressure lamps have more components than low pressure and contain other substances such as mercury. The striking feature of sodium-vapor lamps is their radiation dominated by the emission of two resonance lines at 589/590 nm. Manufacturer of High Intensity Discharge Lamp - High Pressure Sodium Vapour Lamp (Tubular), Metal Halide Lamp (Single Ended), Metal Halite Lamp (Double Ended) and High Pressure Sodium Vapour Lamp (Elliptical) offered by Capart Industries Private Limited, Hyderabad, Telangana. Most high pressure sodium and all other light sources employed in street lighting contain mercury and special restrictions apply to the disposal of used lamps. Scientists have long been familiar with fact high luminous efficiency could be obtained by the use of sodium resistant glass, the sodium vapour lamp has now reached the practical stage. A final advantage is that in the case of a momentary power supply interruption, the lamp will restrike as soon as the power is restored and no cooling down period is required. High pressure sodium bulbs ("lamps") are an old standby for lighting that's still used today in spite of so much talk of LED lights. They are used for things such as security lighting. These types of lights are commonly found outside. Price — Is on Sale % Show sale items only . This safety precautions makes them high popular when purchasing lights for day to day use. The excited electrons emit light around a wavelength of 590 nanometers. A low-pressure sodium-vapour (LPS) lamp contains an inner discharge tube made of borosilicate glass that is fitted with metal electrodes and filled with neon and argon gas and a little metallic sodium. Delivery update. A high-pressure sodium street light in Toronto. The xenon gas which is easily ionized, facilitates striking the arc when voltage is applied across the electrodes. High pressure sodium ballasts for lamps provide stable current use of the inductive reactance of the ballast, and other pipe lit work. Features. Low-pressure sodium lamps only give monochromatic yellow light … High Pressure Sodium Ballast (ANSI Code S54) and HPS FIXTURE REQUIRED. How Sodium Vapour Lamps Work! The lamp produces a clarity of light that creates vivid color from objects illuminated by it. In a high pressure sodium lamp, a compact arc tube contains a mixture of xenon, sodium and mercury. High pressure sodium bulbs and metal halide bulbs emit different color spectrums of light. These types of lights efficiently produce very intense light. A 250 watt high pressure sodium lamp can last from 12,000 to 24,000 hours. A metal halide bulb produces about 65-110 lumens of light per watt while a high pressure sodium bulb produces about … Applications. When a high pressure sodium lamp is to be disposed, it is subject to the current EPA Toxicity Characteristic Leaching Procedure (TCLP) disposal criteria. First Online: 25 February 2017. Road and residential lighting. There are two kinds of sodium lights: Low Pressure (LPS) and High Pressure (HPS). In fact, they're roughly as efficient as LEDs in terms of their light output for each watt of energy used. Two varieties of such lamps exist: low pressure and high pressure. However, the first low-pressure lamps were sold commercially in the United States in after John Cooper Hewitt innovated the lamp's color spectrum from blue-green to white. 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