Please see pictures
Hornby R918 Power Unit Controller Mains Input 220-240V Output 14V D.C. - Tested
Hornby R918 OO Gauge - Mains Power Unit / Speed Controller + Cables + Clip -MINT
R918 Hornby OO power controller
Hornby R918 Model Railway Train Controller
Hornby R602 Power Connecting Clip - Spare Parts and Train Accessories for Hornby OO Gauge Model Railway Sets, Coupling and Modelling Tools - Power Connecting Clip, Scale 1:76
Hornby R602 Power Connecting Clip - Spare Parts and Train Accessories for Hornby OO Gauge Model Railway Sets, Coupling and Modelling Tools - Power Connecting Clip, Scale 1:76 (Pack of 2)