uxcell AC 24V (16V~28V)/DC24V (16V~40V) Step-Down to DC 12V 3A 36W Power Converter Regulator Waterproof Transformer with DC Connector for IP Camera Convert unstable voltage AC 24(16V-28V) to stable 12VDC 3A output. Si-Fe Cores magnetic loop, high temperature resistance and super stability. The import high heat conduction organic silica gel filling and sealing technology. IP67 Protection grade, waterproof, moistureproof and anti-shock protection.Built-in over/under voltage input, overload, overheat, and short circuit protection. Note: It is recommended to use stable DC power for the input power supply If you use the pulsed DC power provided by the generator, please filter it with capacitor before connecting it to the converter. If you use solar panel to supply directly, please note that the open circuit voltage of the solar panel cannot exceed the maximum withstand voltage of the converter. The supply voltage should be within the rated voltage and always leave a certain margin.