Water circulation cooling clothes
Component
A. Cooling vest
B. Ice packs x2
Rated voltage
DC 7.4V —12V
Cooling theory
Place a frozen ice pack with 500ml water added to the mounting hole on the back of the vest. There is a water-pump in inside the vest makes water circulate in a parallel way. The water will absorb the heat from the skin and cool down bodies.
Cooling time
The ice pack is reusable. It lasts around two hours. The water-pump needed be charged by 5V potable charger. A 10000 mAh portable charger is able to last around 6 hours.