High Voltage Tester for testing of Switches and Sockets. One can test either 20 Nos. switches one way or two way 20 Nos. and 10 Nos. Sockets. The seperate fixture arrangement will be made with pneumatic arrangement to connect the switches and sockets, all in parallel and voltage is applied. In case there is no failure pass signal will be displayed. If there is failure in any one of the switch/socket the fail signal will be displayed. Then one can test individual switch to find out the failed switch/socket.