A great deal of importance can be put on your Electrical Components when it comes down to rating your tractor's electrical capability, but the Domestic & Workshop Electrics, Specific Vehicle Electrics, Electrical Switches & Sensors, Vehicle Electrics, Vehicle Lighting & Reflectors are equally as important. The many parts of an electrical system, including the batteries and flasher units that can wear out over time through frequent use, so paying close attention to the condition of your lights and sensors/switches is a must when conducting your routine servicing checks. For example, if you're planning to work into the dark hours and your lights do not function correctly then the vehicle could be classed as unsafe and be a potential danger to other road users.