This 12V/24V to 4.2V DC power converter is a compact buck (stepdown) module designed to supply a stable 4.2V output from 12V or 24V input sources. The unit is available in multiple current ratings (1A, 2A, 3A, 4A, 5A). The listing shown is the 2A version (12V/24V to 4.2V 2A), and other current options are offered in the same family. Key benefits Enables a fixed 4.2V supply from higher voltage sources: ideal for Liion related circuits and other loads that require a 4.2V input. Flexible current options: choose from 1A, 2A, 3A, 4A, or 5A to match your load and thermal design, helping to optimize performance. Simple integration with common supplies: works with 12V and 24V systems commonly found in automotive, industrial, and hobby projects. Compact onepiece form factor: designed for easy installation in compact electronic assemblies and enclosures. Key attributes Functionality: 12V/24V input to 4.2V output buck converter for a regulated DC supply. Compatibility:Suitable for devices and circuits that require 4.2V from a higher voltage source; available in multiple current ratings (the listing variant is 2A). Size: Compact module intended for straightforward integration; exact dimensions are not specified in the listing. Material: Material details are not specified in the listing. Performance: Delivers a fixed 4.2V output at the selected current rating, suitable for stable lowvoltage applications derived from a 12V or 24V source. Applications Liion cell charging circuits and other 4.2V load scenarios that can be powered from a 12V or 24V supply. Automotive or offgrid projects where a 4.2V rail is required from a highervoltage source. Prototyping and testing setups that need a readymade 4.2V supply derived from common 12V/24V inputs. Package contents 1 piece per (1Pcs) of the specified current rating (e.g., 2A version shown in this listing). Notes Ensure compatibility by matching the required output current (1A–5A) with your load and verify that the input source can sustain the 12V or 24V supply under load. This description reflects the product's stated specifications: 12V/24V input, 4.2V output, current ratings ranging from 1A to 5A, and a 2A variant shown in this listing.