User Controlled Mode And Proportional; LED Indicators; Supports Electric-Over-Hydraulic Trailer Brake Systems; Dash-Mounted Remote Head; For 1 To 3 Trailer Axle And 12 Volt To 24 Volt Vehicle Systems; 0 To 60 Degree Celsius Operating Temperature; With Towed Vehicle Brake Control Wiring Harness And Trailer Brake Control Switch Insert Panel