With an electrically powered solid state heat pump, the emission surface can be >100°C while keeping the chips <100°C. https://en.wikipedia.org/wiki/Thermoelect

With an electrically powered solid state heat pump, the emission surface can be >100°C while keeping the chips <100°C. https://en.wikipedia.org/wiki/Thermoelectric_heat_pump https://en.wikipedia.org/wiki/Thermoelectric_heat_pump