A curious product!
See the attached graph showing the heat up and cool down times based on some very basic testing.
The device was switched on at time 0s and switched off 287s into the test. The temperature was measured using a K-type probe pushed inside the device.
Left hand axis = Current in amps @ 5V (starting around 0.4A)
Left hand axis = Power in Watts (starting around 2W)
Right hand axis = Temperature in deg C
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