TWNT-ECB28-D

Semiconductor vest for pet    
Input: 5.0V  Working power: 8.8W-H, 7.5W-M, 6.7W-L 

4pcs semiconductors
COOLING function on metal plates (compare with the ambient temperature ):             
H-  15°C blow the ambient,                
M - 10°C below the ambient,                       
L - 5°C below the ambient,
HEATING function on metal plates:             
H - 60±3℃,  M- 50±3℃，  L -40±3℃
(Powered requied by 5V/2A power bank)