Material: copper lacquered or glossy chromed. Spiral cable adjustable from 75 to 185 cm. 250 W infrared radiator, on/off switch on the housing. Connection single-phase, may only be carried out by a specialist. The heat lamps should be suspended at a height of approx. 50 cm above the food to be kept warm, so that the heat circuit of approx. 45-50 cm can be maintained. 2 years warranty. Delivery without plug. Installation only by a specialist!