... SUL180a(24 hour time switch,time mechanical switch) 24h programmable timer mechanical type,16A/220VAC Time Switch SUL180a ... of “MIN” means that the timing will press repeatedly relevant Key. 4.Timing program setting: ... select needful mode among the program package, and press the keys of “HOURS” and “MIN” to ... of first group of on program is available. Respectively press the key of “WEEK”, “HOURS” and “ ...