component voltage is 110/220v/380v or other voltage grades needed by users. 1． length 300 - 3,000 mm; outer diameter: Φ10-50mm; power: 0. 3-6kw. our company can also process, design, produce goods according to each technical parameter of user's special request. 2． surface temperature of heater divides into three grades: low temperature: 400℃ --600℃ mid temperature: 600℃ --800℃ high temperature: 800℃ --1000 ℃ 3． relative radiation characteristic: this quartz heater component has strong transmission at far infrared, compared with other kinds far infrared products, when the wavelength >6lj, radiation energy is particularly remarkable. lianyungang granhtquartz factory