Dark-red and golden quartz tube is a new kind of quartz material. Compared with common transparent quartz, it can absorb UV and most visible light and translate into infrared radiation. Compared with milk-white quartz, it can penetrate infrared radiation, which can load several times of energy per area. Compared with coated quartz, it is low-cost and high-stability. So it is an excellent material for producing infrared heater. It?s suitable for high-power and small-volume infrared heating products.