The Lind LPT1230-052 Low Profile Shutdown Timer protects your vehicle’s battery from over-discharge and equipment from low voltage and high voltage damage. This device turns off electrical loads at a preset time after the car engine is shut down. This timer provides the same protective functions as Lind’s standard Shutdown Timers but comes with a reduced height profile for installation into more compact areas. 11-16 VDC; More compact design via reduced height profile; Adjustable shut down delay time (from 5 seconds to 4 hours, factory set to 2 hours)