1、The boost‑buck module has an input voltage range of DC 9‑40V, which is suitable for a wide range of boost or buck voltage. 2、Automatically cut off and restore the circuit, with automatic protection functions such as overcurrent, overvoltage, overheating, short circuit, etc. 3、Adopt potting and waterproof technology, and use aluminum shell to provide all‑round protection and more stable and reliable. 4、The silicone potting is waterproof, dustproof and shockproof, suitable for use in various harsh environments. 5、Used for surveillance cameras, electric fans, water pumps, motors, LED lights, security systems, audio equipment, industrial electrical equipment, etc. Item Type: Power Converter Material: Organic silicone + aluminum Model: GYVRM-WD1L121220 Input Voltage Range: 12V/24V（DC9-40V） Output Voltage: 12V Rated Output Current: 20A Output Power: 240W Protection Level: IP67 Conversion Efficiency: Up to 96% Working Temperature: -20℃~+80℃ Installation Line Length: Approx. 13cm / 5.1in 1 x Power Converter 1 x Wiring Drawing Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia