3A DC-DC Boost Step Up Adjustable Voltage Converter 4-35V to 5v-56v 12v 24v 48v | eBay
NEW AxioMatic 24V DC-DC Converter SMP-BAC-24VDC-48VDC Condition_New
Amazon.com: XWST DC 24V Step up to 48V 3A 144W Converter Voltage Converter, 48Volt Regulator Waterproof DC/DC Boost Transformer Power Supply (24V to 48V 3A) : Electronics
DC to DC Converter converts 48V DC Input voltage to 24V DC output voltage.
DC to DC Converters (12V/24V/48V) - TBS Electronics EN