-40°c ~+80°c( If ambient temperature exceeds 40°c, lower power use, 

or to enhance heat dissipation)

non-isolated boost module

 Attention:

>Pls install according to the the label strictly,positive pole and nagative pole can’t be reversed, or the module and device might be damaged
>To assure this converter has the sufficient voltage and power pls make sure the voltage and power input is enough.