The Master 8 by LTL Controls is the safest and easiest way to control a 8 HID light setup. This controller has the capability to run a maximum of (8) 1000 Watt ballasts using 120 Volt power & 240 Volt power, with a maximum relay amperage of 50 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 are unfamiliar with electrical wiring and circuits. (120 volt & 240 volt Universal Plug) Features: 120 Volt Trigger Cable Can be connected to 120 Volt timing device Maximum relay amperage of 50 amps Technical specifications: Main Power Voltage: 120 or 240 volt Receptacle Type: Universal Maximum Lighting Wattage: 8000 (1000/outlet) Maximum Relay Amperage: 50 Amps Operating Temp Range: 32-110 °F Operating Humidity Range: 0-99% (non-condensing) Minimum Relay Operations: 100,00 @ full load