SON hubs and lights include normal spade connectors — trim wires to length, crimp on connectors and connect to your hub. Anyone can manage this system and it works well. As an upgrade, SON offers a coaxial version that I put together today. This system requires more effort to assemble (basic soldering required) but pays you back with a number of advantages.
The upgrade comes with an adapter that connects a coaxial plug to the hub spade connectors. The new plug interface is spring-retained, which is more refined than the friction fit of spade connectors. The coaxial plug is secure but can be fitted or removed with full-fingered gloves.
![Setting up the first solder operation](/wp-content/uploads/2018/10/solderinglight-1.jpg)
![Setting up the second solder operation](/wp-content/uploads/2018/10/solderinglight-2.jpg)
![Test fit plug to adaater](/wp-content/uploads/2018/10/solderinglight-3.jpg)
![As installed to SON dynamo hub](/wp-content/uploads/2018/10/solderinglight-4.jpg)