The TSS-22 transformer series from HADCO features 12V, 13V, 14V, 15V, 17V, 20V, and 22V output taps and a large terminal block to accommodate up to four #10 wires. Plug-in ready for timer and photocell (sold separately), and a 6-foot grounded cord and plug. Outer case is 304 stainless steel.