If you need one or both sides of your headlight connector this little kit has everything you need.
As electrical connections age resistance increases and as a result so does heat. The temperatures produced by the constant amperage drawn by H4 bulbs can result in plastic female connectors melting. A ceramic housing such as these will help dissipate the heat and the plastic housing surrounding it will protect wiring and plastics that might come in contact with it.
The Orange is a typical straight terminal connector while the Blue is uses 90º flag terminals which helps in situations where space is very limited.