The DPC-7500-COMBO is a versatile 240 Volt lighting controller that provides four 240 Volt outlets and two 120 Volt outlets. This model connects to a 4-wire 240 Volt service and in many cases, you can plug right into an existing dryer-type outlet (14-30r) to be up and running fast. A unique feature of this model is that you can also set the last two outlets to be timed with the main group or to provide constant power. Built-in digital timer with battery backup. Four timed 240 Volt outlets (6-15r) and two 120 Volt outlets (5-15r). The 120 Volt outlets can be timed with the 240 Volt outlets or set to constant power. Detachable trigger cord can override the built-in timer so Powerbox? can be controlled by other devices. 5 ft main power cord - plug & play (14-30p). Hand-built at their California factory.