Hornby mains Input unit R912. have tested has power in and out. All specs in pics.
Hornby R918 Power Unit Controller Mains Input 220-240V Output 14V D.C. - Tested
HORNBY - R918 Power Unit Mains Input 220-240V Output 14V D.C. - Not Tested
Hornby R912 & Safety Minor Train Controllers Bundle Untested
Hornby R912 Model Railway Power Unit Controller
Hornby R912 Model Railway Power Unit/Speed Controller
2x Hornby R912 Power Unit Train Speed Controller