Indoor/outdoor infrared heater. Schott Nextrema glass combines high-temperature, thermal shock and chemical resistance, excellent infrared transmission, non-porous surface and attractive design. Ruby halogen bulb provides full power in under 8 seconds. IP65 rated for outdoor or indoor use. Anodized aluminum casing provides long life and suitable for all climates. Up to 5,000 hours of running life. In open box (not tested). TT