Step-down converter 9 - 24V with USB socket to power devices on 5V. Technical data Product dimensions: L42mm * W16mm * H5mm Input: 7.5V-28V Output: 5V / 2.5A (2.1A continuous) Conversion Efficiency: 96% (Max) Switching frequency: 1.5MHZ (max) 1MHZ typical Working temperature: -40 '' C - + 85 '' C Dimensions: 20 x 11 x 5mm (L x W x H) Datasheet - technical data of the system The converter will only work in supplying simple devices without complicated electronics, such as a power bank or lighting. In the case of mobile phones, the voltage drop below 5V makes it impossible to charge this type of electronics. https://elecena.pl/product/22621081/2-5a-step-down-dc-9-24v-to-5v-voltage-converter-with-usb-a-port 2023-02-23 https://elecena.pl/product/22621081/2-5a-step-down-dc-9-24v-to-5v-voltage-converter-with-usb-a-port 2025-10-29