This unit is an attractive rectangle panel mount hour meter. Specifications include: Time Scale: 6-digits, Operating Voltage: 10–80 V DC, Power: .03 Watts @ 12VDC/.7 Watts @ 48VDC, Size: 1.43W x .92H x 2.13D Inch, Face Dia. 2.12W x 1.25H Inch, Weight 2 oz., 1/4" Male Blade Terminals, Vibration Resistant, Accurate, 2 Hole Mounting Flange, Warranty: 10,000 hrs / 3 yrs.