Air Purifier Compatible HVAC System Size 1.5 to 5 tons Voltage 24 V AC Maximum Air Flow Capacity 5000 cfm Number of UV-C Bulbs 1 Duct Insertion Length 16 in Maximum Coverage Area 5 000 sq ft Removes Mold Bacteria Viruses For Duct Cut-Out Height 1 in For Duct Cut-Out Width 1 in Air Cleaning Method Ultraviolet Light Amperage 0.5 A Frequency 60 Hz Housing Color White Includes 24V AC Transformer 24V AC UV-Aire Ballast Assembly Fiberglass Duct Board UVC Light Shield Fork Terminals