V11 Fuel Sensor Question

Hi, I have the tank off V11. Whilst my bike is registered as 2003, it maybe an early year masquerading as such, as it has an external fuel pump and relief valve. Not having an OEM dash, my low fuel sensor bypassed, and I would like to recommission it. Does anyone know the voltage that sensor is powered by? Does the sensor self regulate the current or is that limited by the “presumably” in series bulb?