This 10V-55V to 5V DC Buck Module is made of flame-retardant plastic shell, which has high temperature resistance, good heat dissipation, and no heat generation during long-term use. It is very safe. Epoxy resin encapsulation, better heat conduction and heat dissipation, waterproof, dustproof and shockproof. This step-down voltage converter adopts high-quality industrial chip, with high conversion rate,low heating, stable and reliable; Support output short circuit protection, over-current protection, over temperature protection and low-voltage startup protection. Small size, easy installation, red wire connected to positive pole, black wire connected to negative pole, DC-DC step-down converter, integrated switch thin voltage regulator module, stable performance.(Note: There is no reverse connection protection, and wiring must be carried out according to the instructions. Reverse connection will burn out the power supply). Wide range of applications: car audio, radio, monitoring intercom, LED display, children's car, LCD TV, electric fan, solar power generation, photovoltaic panel, motor, industrial equipment and electrical appliances, etc.