Intelligent temperature control and stable operation: The air conditioning main control board accurately regulates the temperature, ensuring smooth and trouble free operation of the entire machine. Circuit voltage stabilization and durability: Built in voltage stabilization protection circuit reduces voltage shock and extends service life. Internal and external dual control split universal: compatible with split air conditioner internal and external unit motherboards, easy to maintain for multiple models. Multiple protection for safe startup: multiple protections for overload, short circuit, and leakage, ensuring safe use without any hidden dangers. Quick installation and use: standard wiring ports, even beginners can quickly complete assembly and debugging., Weight: 0.110231131 pounds, Manufacturer: ZBWRVTWXR