5A DC to DC CC CV Lithium Battery Step down Charging Board Led Power Converter Lithium Charger Step Down Module XL4015 blue
If you want to know more about the product（details+price）, please send an email to email@example.com , and then we can talk in detail. Attached our company profile and website link for your reference. https://www.pcb-hero.com/collections/all-products Thank you for your time.
For the product specification, pls refer to the pic