Anchor windlass control switch made by Lewmar Simpson Lawrence. High amperage reversing switch used to control a windlass or winch. Used with Lewmar Sprint 400 or 600, or Lewmar Horizon 400 or 600. Can be used with other winches rated for a 35 amp breaker. Used for direct control of a windlass or winch. Not normally used when a solenoid or contactor is in the circuit. New, never installed. See link below and compare with new price of $150 plus taxes and shipping.