This is an original style Dash Warning Light which looks very original and operates exactly like yours when it was new. If your voltage drops the light comes on. It fits the original hole and wires up exactly the same so its a simple swap out (Has 12 V Bulb). See details for Models it Fits-
This great quality Light fits the following (Note it fits a ton more of vehicles I just haven't been able to check yet.)
Tractor
Ferguson Grey Petrol & Petrol/TVO/ Kerosene.
Landrover
Series I
Tractor
Ferguson Grey Petrol & Petrol/TVO/ Kerosene.
Landrover
Series I



