parameter: Product name: carbon fiber heating wire Insulation material: Silicone rubber The highest temperature tolerance: 200C degrees Heating temperature: depending on the length of use Heating element: 12K Leakage current: 0.05mA/m The product can withstand the maximum power: 25W/M Diameter: 3±0.1MM (thicker and safer) color: red Infrared wavelength: 8UM-18UM Conductor resistance: 33±10%/m The package includes: Buy 100m cable=100m+20 copper pipe+20 casing Buy a 50m cable=50m+10 copper pipes+10 bushings Buy a 30m cable=30m+6 copper pipes+6 bushings Buy a 20m cable=20m+4 copper pipes+4 bushings Buy a 15m cable=15m+4 copper pipes+4 bushings Buy a 10m cable=10m+2 copper pipes+2 bushings How to calculate power? Voltage*Voltage☼Resistance=Power 12K = 33 ohm/meter For example, using a 10m 12K carbon fiber cable on 220V, the power is: 220V*220V*10m*33=150W For example, using 15m 12K carbon fiber cable on 220V, the power is: 220V*220V*15m*33=100W The longer the length, the lower the power and the lower the heating temperature. notes: 1. Due to manual measurement, please allow an error of 1-3mm. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the item. Thanks! 12k 33 ohm carbon fiber heating wire far infrared silicone heating cable Materials: Made of high quality materials, robust and durable, safe and convenient to use. Size: matched to the corresponding model to match your working tool needs, check if it is the size you need before you buy. Function: This is a good companion you need on your tools, giving you a more convenient working life, in case you are busy indoors and outdoors Satisfaction guarantee: Your purchase is fully protected when you order today. If you are not satisfied with with our products, contact us any time, We will get you back within 24 hours try our best to make things right.