Feature: 1. VOLTAGE AND CURRENT: Converter input voltage range DC 7V‑32V, output voltage DC 0.5V‑32V; Maximum output current 5A, recommended to use less than 4.5A; Maximum output power 75W, recommended to use within 50W 2. HIGH ACCURACY: The buck converter consists of a 36u thickened circuit board, a high Q inductor with an output LED indicator, and a excellent solid state capacitor that can effectively filter out high frequency noise. Suitable for all kinds of electronic projects 3. HIGH SECURITY: Buck boost converter built in security chip to prevent input backconnection; The output is prevent backflow, so that not necessary to add prevent backflow diode when charging the battery 4. SWITCH TIMER: Buck boost converter module switch support timing, full automation, hands free, make work easier and faster 5. HIGH EFFICIENCY HEAT DISSIPATION: Buck boost voltage converter with cooling fan, can automatically adjust according to the working temperature, prevent circuit overheating Specification: Item Type: DC Buck Boost Converter Input Voltage: 7V-32V Output Voltage: 0.5V-32V (less than 1.8V is weak output capacity) Output Current: Enhanced heat dissipation up to 4A Output Power: Enhanced heat dissipation 50W Voltage Resolution: 0.01V Current Resolution: 0.001A. Package List: 1 x Module1 x Small Fan4 x Screw4 x Nut