FloraFlex Master Lighting ControllerOutput Range : 10% 115% Numbers of ballasts per output : 100 pcs Max Max cable length per group : 100 meters Control voltage outputs : 2 Group s, A B Temperature sensor : 2 Group s, A B Over heat protection : Yes Sunrise sunset period : Yes Setup ballast type : 1000W 945W 750W 630W 600W 500W 315W Not Sure Alarm port : 2 Groups, NO NC ECM port : 2 Groups, A B; Weight : 0. 5kg Warranty : 3 years