Auction here is for a single low voltage  transformer rated 110/120 volts primary ,and 29/30 volts ac secondary and around 3 to 5 amps , there are 5 shown and you will get one as similar as shown  , these are used and removed from cde rotor control boxes , buy as many as needed shipping is discounted if buying more than one   comes as shown in photos .sold as is no returns, payment by pay pal at auctions end .i ship same or next business day after paid .THANKS KEN KT4KI 73!