Below you'll find the relationship between the length of tape, input current and temperature generated. Measurements were taken at a voltage of 12, 7.4 and 3.7 volts and in an ambient temperature measuring 23 degrees Celsius (73 degrees Fahrenheit).
The temperature sensors was positioned on the tape which was encased in a piece of Polartec 250 fabric.
If you'd like information on any other voltages not listed here please do not hesitate to contact us at sale@carbonheater.us

The temperature of the carbon fiber tape may differ when used outside due to changes in the ambient temperature. Wind speed as well as the quality and thickness of a thermal insulator are dependant factors.
If the carbon tape is covered by a thermal insulator, for example thermal fabric, the tape will reach its maximum temperature within a few seconds.
If, however, the carbon fiber tape is exposed to the open air it's possible it may never reach its maximum temperature. This is no different than other heaters.

The smaller area of the carbon cord causes less heat loss to the air and a higher temperature compared to the carbon tape (and the same idea 15mm vs 44mm). Comparing heated clothing you should to compare the power but not the temperature.

Powers of 5-8 Watts are sufficient only for insoles or gloves. For heated vest, jacket or trousers you should use 15-80 Watts.
TO HEAT OUR BODY WE NEED A BIG POWER BUT NOT HIGH TEMPERATURE!