LTL Controls Master 4 Lighting Relay Controller, 120/240 Volt Fertigation & Nutrient pH Dosing Pumps the fan starts working when

the fan starts working when the indoor is warm enough

Plants grow longer roots with more root surface area and overall root mass

Removes heavy biofilm and mineral build-up

Chamber Size: 16

LTL Controls Master 4 Lighting Relay Controller, 120/240 Volt Fertigation & Nutrient pH Dosing Pumps the fan starts working whenThe Master 4 by LTL Controls is the safest and easiest way to control a 4 HID light setup. This controller has the capability to run a maximum of (4) 1000 Watt ballasts using 120 Volt power & 240 Volt power, with a maximum relay amperage of 30 Amps, and includes a 120 Volt trigger cable which can be connected to a 120 Volt timing device. It is recommended to consult a certified electrician before installing or using this controller, especially if you