1、Module description: Thermal resistance will be a long time in the non operating state; when the ambient temperature and the current in the C zone, thermistor, power dissipation and heating power close to, which may thermistor action may not action. Thermistor at the same temperature, action time with the increase of current and sharply reduced; thermistor at relatively higher temperature with shorter operation time and smaller holding current and operating current. 2、Function Description: By adjusting the thermistor to achieve LED flashing speed. 3、Description of each function module: ![enter image description here][1] 4、Components and PCB diagram before welding: ![enter image description here][2] 5、Physical map after welding: ![enter image description here][3] ![enter image description here][4] ![enter image description here][5] [1]: /editor/20160515/5738228a168a0.png [2]: /editor/20160515/5738229ad0e01.JPG [3]: /editor/20160515/573822abf296c.JPG [4]: /editor/20160515/573822e6c3ca4.JPG [5]: /editor/20160512/57342af70c6b2.JPG