18-36V to 24V 1A Step Up Down Converter Boost Buck Voltage Regulator Module $ 48.02 This voltage regulator can convert 18-36V DC voltage into 24V output voltage. 22. Highly integrated SMD components for high stability and reliability. 33. High quality aluminum shell for faster heat dissipation and increased durability. 44. IP65 waterproof and dustproof, easily adapt to various working environment. 55. Suitable for car screen, monitor camera, fan, water pump, motor, router, etc.