Cooling fans of reverse protection
in semiconductor devices in the power input and do go slow between IC protection, DC 12 v fan, for example, when users due to the reverse accident, can afford to DC13. 8 v voltage and motor components not burned, while DC 24 v requirements to DC 27. 6 v, the protected mode, or almost all the use of basic requirements, general often plus a diode or use other step-down components to meet the requirements. Wenling city tong chi auto air conditioning manufacturing co. , LTD. , specializing in the production of cooling fans.