Low Pressure Sodium Lamps Disadvantages

Types of lighting.

Low pressure sodium lamps disadvantages.

More buying choices 36 95 6 new offers lithonia lighting f70sl 120 m6 70w high pressure sodium micro floodlight with bulb bronze. The efficacy of low wattage white hps lamps is lower than that of metal halide lamps lumens per watt of low wattage metal halide is 75 85 while white hps is 50 60 lpw. Low pressure sodium lamp is a kind of low pressure sodium vapor discharge tube inner tube with special anti sodium glass blown and can radiate 5890a 5896a sodium line can be used as a monochromatic light source optical polarimeter refractometer polarization instrument in. Fluorescent bulbs up types of lighting.

Sodium lamps were first produced commercially by philips in holland in 1932. Two varieties of such lamps exist. Designing with lps see also lps costs low pressure sodium like all lighting types has its own pecularities advantages and disadvantages some of these are discussed in these links. 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.

There are two kinds of sodium lights. Lps light provides essentially no color rendition so is inappropriate for any use where 1 color perception is important and 2 lps will be the only light source illuminating the area. 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.