Features: XL6009 boosts buckk Adjustable steppings Up/Down converters Module offer voltages regulation (1.25V-35V) with 94% efficiency, ideal for solar applications and DIY electronics. Features wide 3V-32V input ranges, low ripples output (50mV), and design for stable power conversion in space constrained. Perfect for engineers, electronics hobbyists, and solar project developers requiring precise voltages adjustment for LED driver or portable devices. Enhanceds solar panel systems, and industrial prototypes with automatic buckk/boosts functionality up to 35V output. Builts to 40°C to +85°C operation, this module delivers performances in demanding conditions with 4A input current. Specifications: Material: Size: 48x25mm/1.89x0.98inch Quantity: 1PC, 3Pcs(optional) Package Includes: 1/3Pcs Adjustable boosts buckk Module note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item.