Taken inside ambient temperature 24 degrees C
Images all 105 seconds ISO800 camera turned off between image 1 and 2 left on between 2 and 3
After 15 minutes the cold plate temp had dropped to about 1 degree then jumped to steady 2 degrees although the Peltier draws 4amp at 12v DC only 10.2v was being fed into it. My battery supply was running low, so obviously the Peltier was not drawing the max current and running at full effeciency the heat sink hardly warmed up.
1st image is start up, 2nd after 30 minutes and 3rd after 45 minutes, no change in cold plate temp between 30 and 45 minutes.
A good reduction in noise is apparent, further testing will be done when sorted power supply issues ie: buying a 12v 5amp regulated power supply adaptor. At full current draw Peltier should acheive sub zero temperatures.
