Ecotechnics Powerstar Pro Contactor Timers plug into a double power outlet from ring main. 15 minute segmental timer is built into unit, pull out pins for required off period and unit will safely allow start up for several lamps. Powerstar contactor timers are available in 2 sizes: Maximum loads, 6kw 6 way = 6 x 1000w, 6kw 8 way = 6 x 1000w or 8 x 600w.