Digital Timer for Hydroponics - 30A for Accurate Scheduling and ControlDigital Timer for Hydroponics 30A for Accurate Scheduling and Control 30A Digital Timer For HID Lights + Hydroponic Equipment This JBL digital timer has been made and designed with HID lighting and high power equipment in mind. Made specifically for the hydroponic and horticultural industry you can't go wrong with this timer. JBLTimer Features: 30A Contactor rating 10 Amp (240V) Max load rating Up to 8 on off options per day Daylight savings function