... efficiency, reduce the uv output, improve the infrared output, like infrared intensity higher, and thereby more energy saving, ... within a quartz envolop.2.Halogen type,which avoids blackening mof tube and consequently infrared depreciation during lifetime.3. ... ,camp sites ,painting drying ,etc Gold Coated Infrared halogen fused Quartz glass Heating Lamp with ceramic holder (CE and RoHS)