Indeed, like my VaporShark DNA200, most TC devices you set the wattage to get the ramp up to your selected temperature, then the device just supplies the needed wattage to keep it at that temperture for the length of the vape. Vape in front of a mirror, look at the screen, as soon as you see "temperture protected ", look at how low the wattage goes down. Do an experiment at 35 watts, my normal setting, and 75 watts, in TC mode, doubt you'll notice much difference.
What some argue is does vaping in TC mode increase or decrease battery run time versus vaping in power mode VV/VW. I'm in the camp that TC mode uses less battery as it throttles the power/wattage after it quickly reaches your chosen temperature.
Wattage jumps up and down on the Pico in TC mode too if anyone was unsure or curious.