Fangrui Product Details Description/features: Compact Size Stamp Hole Design Specifications: Type: Mini560 Pro Output Voltage: 12v Input Voltage: 5.5v-20v (limited To 2v Voltage Difference) Output Current: Less Than5a/4a Long Distance Running Over 4a/3a Requires Additional Heat Dissipation Switching Frequency: 500khz Conversion Efficiency: (height Limit) Working Temperature: -40 To+85 Module Properties; Non Isolated Voltage Reduction Rectification Method: Synchronous Rectification Due To Different Batches, There May Be Differences In Product Appearance And Printed Text, Which Not Affect Use. Material: Pcb Colour: As Shown Package Contents: 1 X Module Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.