The 6 Lamp Tester is an easy to use, easy t understand Voltage reader for your electronic fence energizer. Six Lamp Tester The 6 Lamp Tester is an wasy to use, easy to understand Voltage reader for your electric fence energizer. It can be used to measure the voltage of your fence up to 10000 Volts.Detail informtion: 1 Lamp 600v 2 Lamp 1000v 3 Lamp 2500v 4 Lamp 4000v 5 Lamp 5500v 6 Lamp 7000v Six ...