Twin electrics (the second socket is a 12S socket) provides you with two 7 pin sockets at the rear of your vehicle. This allows you to tow any trailer or caravan as your entire road legal lighting (including reversing lights) are provided.

The grey or white 12S socket provides power to the caravan battery, fridge, interior light and reversing lights and is optional when towing a caravan.

Many people who only tow a caravan for a couple of hours and will then be pitching up at a caravan site with mains electricity opt to do without the 12S socket and just fit single electrics to their vehicle.

When fitting twin electrics, depending on your vehicle and caravan you may have the option of:

• a Universal Twin Electrical Kit with Spilt Charge Relay
• a Universal Twin Electrical Kit with Interface By-Pass Relay and Split Charge Relay
• a Vehicle Specific Electrical Kit with 12S & Split Charge Relay Upgrade Kit or with a small amount of vehicles the kit comes as a twin kit.