🛑Professional grade air purifier that uses UV light to purify the air in HVAC systems 🛑2-16-inch 36W UVC, 254NM bulb, 120 volt, 6-foot power cord. Product weight: 6 lbs. LED indicator light verifies proper operation 🛑Installs in minutes, step-by-step instructions with pictures 🛑The effectiveness of a UV air purifier is based on the wattage and length of the UV bulbs, the higher the wattage, the more effective the unit will be at purifying the air. 🛑Available for installation in ducts with more than 17 inches of depth. EPA Est. No. 94721-CHN-1