When trying to control more than one HID (High Intensity Discharge) lighting system, you can either use a bunch of timers OR… a device like the HPH-4. The HPH-4 makes it simple to control up to 4000 watts of lighting from a single timer or controller. The HPH-4 has four UNIVERSAL receptacles that accept either a 120 volt (Nema 5-15P) or 240 volt (Nema 6-15P) male plug from your HID ballasts.

The user provides a single 240 volt, 30-amp circuit to the HPH-4. An internal heavy-duty relay turns the lights On and Off. The relay is turned On and Off by connecting the 15 ft “trigger cable”, (a 120 volt power cable) to a time-clock or controller like the MDT-1. When the time-clock or controller turns ON, the trigger cable caries the voltage to the relay inside the HPH-4, the relay activates, and the (4) receptacles are energized turning the lights connected to the unit ON. 30-amp @ 240-volt main power supply. (3-wire #10 AWG 120-volt trigger cable connects to MDT-1 controller or time-clock

HPH-4 is housed in a heat-sink aluminum enclosure that is designed to remove the heat and allow cooler operation. Universal receptacles accept either 120 or 240 volt ballast cables. We use only heavy duty 40-amp industrial contactors for the HPH-4

Not sure which Controllers are right for you? All these controllersare available in our Ebay Store. Temp, Humid & CO2 controllers COOL-1 UTC-1 EVC-1 EVC-2 CPPM-1 CHHC-1 Cooling control Selectable Selectable Yes Selectable Yes Heating control Selectable Selectable Selectable Yes Humidity control Selectable Selectable Selectable Digital display Yes Yes Yes Yes Easy to use pushbuttons Yes Yes Yes Yes Separate Day and Night settings Yes Yes Yes Yes Records minimum and maximum temperatures Yes Yes Yes Records minimum and maximum humidity levels Yes Yes Records minimum and maximum CO2 PPM levels Yes Yes CO2 Part-per-million (PPM) sensor & control Yes Yes Fuzzy logic or On / Off CO2 PPM control Yes Yes Remote sensors Yes Yes Yes Yes 3-year warranty Yes Yes Yes Yes Yes Yes Inexpensive "analog" unit Yes Yes
* Some of Sentinel's controllers have the ability to "select" certain functions so that the unit can be better customized for each * While most of Sentinel's controllers are DIGITAL, some of our controllers are based on familiar "analog" controls that have adjustments that are set using a simple turn of a dial.