Review on CNBTR Thermoelectric Peltier Semiconductor TEC1 12730 by Vincent Burton

I rated this (TEC1-12730) against TEC1-12710. This device does not cool sufficiently, but it draws a lot of electricity, which is converted into heat. Look at the picture of the test setup and see some of the following test results: I used regulated DC (no PWM). The device under test (DUT) is embedded between two large heat sinks (90 x 69 x 36 mm https://www.amazon.com/gp/product/B07THL51ZD/) with thermal paste. A 55mm 12V fan blew over the hot side. Both heatsinks had a hole near the thermal surface where the temperature sensors were inserted, so the temperature readings were very close to the surface temperature of the DUT. At t = 0 s a constant voltage was applied. and then the temperature of both sides and the current are recorded at regular 30-second intervals. Partial test results only as space limited-TEC1-12730 (this unit) ================= V = 5.1 VDC Time (min-sec) Hot °C Cold °C amps ------------------------------------------------- --- ---- ------------------------0-00 23.5 23.5 6.50-30 30.0 18, 0 5. 91-00 32.9 16.0 5.71-30 34.3 15.1 5.72-00 34.9 14.8 5.72-30 35.2 14.6 5.83-00 35.4 14.5 5.83-30 35.6 14.5 5.84-00 35.8 14.6 5.8 <--- Cold side now continues to grow 4-30 35.9 1 TEC1-12710 (https://www.amazon.com/gp/product/B00DYNTM04/)=================V=5.1VDC current readings are only displayed for 1 minute. Interval for text abbreviation here Time (min-sec) Hot °C Cold °C Amps -------------------------------- - --------- ------------------------0-00 23.5 23.5 3 .31-00 33.7 15.9 3.02-00 36.4 12.6 2.73-00 37.3 11.0 2.64-00 37.5 9.8 2.65 -00 37.7 9.2 2.6 . and so on to -12-00 36.9 7.6 2.56 <--- Much colder final temp. Several other voltages have been tested, but all tests have shown this device to perform poorly. The TEC1-12710 is really good, although it was no longer available at the time of writing this review. PWM was tested but, as expected, achieved very poor results. DO NOT use PWM to drive Peltier elements.