FeaturesAnodized aluminum mounting ringsWatertight double V-gasket sealsExtended height bulbsTransparent housing contact blocksColor coded contact blocksGold plated contacts (on Low-Voltage contact block)Reliability ridge on movable contactStackable screw mounted contact blocksStandard NC contact opens before NO contact closes (break before make operation)Bright and long lasting LED indicating lights in 6 colorsField convertible maintained selector switches from 2 to 3-position and vice versa