Top Quality AC-DC Transformer Adaptor Power Supply. WE WILL INCLUDE A SPECIAL EXTENSION PUSHED ONTO THE END WHICH WILL HAVE THE CORRECT CONNECTOR SIZE YOU NEED. 6.3mm x 3.0mm The Technical Specifications are as follows - Input : 240v 50Hz 140mA Output: DC 18V - 300mA 5.4VA CE Certified Excellent Quality.