• Input: 120VAC 60Hz 8W
• Output: 12VAC 60Hz 150mA
• Used with many Autotrol valves in the U.S.A. 
• Used with the 440i low voltage and 460i electronic timers ( and a few other timers - include older 960 and newer 740 and 760 Logix ).
• Plugs into a small jack located on the Timer.