We have seen many Sprites (and other British cars that use this same regulator) with dead batteries due to regulator failure. Without the points working properly in the stock product, the generator can fail to replenish the battery, and it will eventually go dead.
In addition, an improperly adjusted or dirty regulator can really mess up the amount of juice flowing from the generator to the battery… whether too much or too little, the originals are often set up improperly.
These new solid state electronic regulators replace all the old moving parts with modern circuitry with no moving parts. They are able to test and adjust voltage 60 times a second to make sure your battery, electrical system and dynamo communicate correctly and do not get damaged. Regulator points become a thing of the past, yet the product (from the outside) looks exactly the same as the stock original Lucas unit.
This digital regulator is made entirely in the US, including the processors and chips. They are fit into Original Lucas regulator bodies and therefore look entirely stock once installed. This is a must have for every generator powered British car with this screw type regulator. This innovation eliminates one more British electrical gremlin!