The HRO parts K8-8585D-L1 is a two-position, double-pole, double-throw (DPDT) electrical switch with a mounting size of 8.50mm by 8.50mm and a height of 13.80mm. It has a current rating of 100mA at 30VDC and has been manufactured in accordance with the RoHS (Restriction of Hazardous Substances) directive. The switch has two pairs of pins located on opposite sides of the body, with one pair being labelled as Common, and the other as either 'Up' and 'Down', or 'Open' and 'Closed' depending on its purpose. The switch is typically used to control the flow of electricity in applications such as in consumer electronics, automotive, and telecommunication systems.