heating lamp VOLT: 100, 110, 120, 220, 230, 240V - WATT: 50-2500W - ... normal direction radiant ratio: ≥94%- Electric heat transformation ratio: ≥98%- Operating temperature: ≤1800 Celsius degree- Highest heat temperature endured: 1100 Celsius ... fibre heating tubes according to the needs of customers on operating voltage, power, size, length etc. Carbon Fiber Quartz Heating ...