Understanding Voltage, Resistance, and Power in a Kapton Heater Circuit

https://high-precision-heating.ironwoodscope.com/posts/how-to-choose-a-glass-heater-for-transparent-surface-heating

In precision instruments, a kapton heater must deliver heat in a controlled way. It uses a resistive foil circuit laminated within polyimide film. One useful trait is custom circuit patterns. Still, hot spots can change the result