The Highest quality socket available on the market, with Pure Fine Silver contacts for both positive and negative connections. A single layer of Platinum plating protects each external contact against tarnish. The positive contact utilizes a tulip tri-shape design that is spring loaded to assure a secure connection. The main body is comprised of 30% glass reinforced Ultramid® with the ground (negative) contact embedded within the connector. The complete unit includes insulation washers to accommodate a panel thickness from 0.1 - 4.2mm.