18″ 2000 Model Dual HO Lamp UVC/PCO Air Purifier (120V), Duct Mount

The Second Wind 2000 Series Ultraviolet Germicidal Lamp is designed for 9,000 hours of continuous operation. After 9,000 hours of the intensity of the lamp inside the duct diminishes and should be replaced. Even if the lamp is still illuminated, the replacement of the lamp is recommended by a qualified HVAC Service Technician.