China manufacturer of magnetic ballasts for metal halide flood lights & hps flood lights

Low pressure sodium lamp  is a low-pressure sodium vapor discharge tube, inner tube system with special anti-soda glass blown, point then can radiate 5890A, 5896A sodium lines can be used as polarimeters, refractometers, polarimeter and other optical instruments monochromatic light.
High pressure sodium lamp is golden white light emitted,match with HPS ballast,when using it with high luminous efficiency, low power consumption, long life, through the fog and strong and not attracting insects and other advantages. Widely used in roads, highways, airports, piers, docks, stations, squares, streets Interchange, industrial and mining enterprises, park, garden lighting and plant cultivation. High pressure sodium lamp is mainly used in color gymnasium, exhibition halls, casinos, department stores and hotels and other places lighting.