A 150 Watt Par38 Edison Screw Pressed Glass Infrared Reflector lamp. This is an incandescent light bulb that features instant warm up and a reasonable service life of up to 1500 hours. A Red infrared lamp is for applications where heat output is more important that light, such as for Livestock Rearing. Other typical uses are Process Heating, Food Warming, Public Building Entrance Halls, Paint Drying and Curing.