Description:

• LM2577S + LM2596S dual chip modules, DC-DC step up step down module with wide voltage design, suitable for solar panel and other high fluctuation external input power supply
• Appearance size (L x W x H): Approx. 6.6 x 4.7 x 1.4cm / 2.6 x 1.85 x 0.55 inch
• Step-up mode: Input 3.5-28V, output: 1.25-26V
• Output voltage is irrelevant to input voltage (input 3.5-28V with arbitrary value, output 1.25-26V with arbitrary value)
• Step-down mode: Input / Output current (max.): 3A, rated input/output: 1A (Please add cooling fin when working in big current)
• This step-up step-down module with voltage display screen, you can see the input and output voltage
• Voltage regulating mode: (Step-up) Potentiometer rotates in clockwise, (Step-down) Potentiometer rotates in anticlockwise
• Note: Because of lower switching frequency and input high current, it is normal to use if it has some noise

Package Includes:

• 1 x Step up step down module