Detailed Product Description The carbon-fiber heater tube employs long fiber as the heating material.Features: 1) Power: 150 - 2,500W2) Operation voltage: 50 - 380V3) Diameter: 10 - 20mm4) Length: 100 - 2,000mm5) Lifetime: 5,000 - 8,000hrs6) Color temperature: 1,200 - 1,500k7) Wavelength: 3 - 1,000um8) Adopts quartz glass tubing