Detailed Product Description Infrared heating lamps.Features: 1) Power: 1000-6000W2) Operation voltage: 50 - 380V3) Diameter: 10 - 20mm4) Length: 100 - 2000mm5) Lifetime: 5,000 - 8,000hrs We also can do the lamp as the customer need, please feel free contact me if you are you any question .