300W isolated DC/DC converters with very large input range
Amazon.com: D-FLIFE 20A 300W CC CV Step Down Module Adjustable DC 6-40V to 1.2-36V Voltage Regulator Buck Converter Constant Current Power Supply Module (2pcs) : Electronics
TEQ 300WIR 300W DC/DC Converters - TRACO | Mouser
300-W/20-A buck-boost dc-dc converters optimized for 24-V inputs - Power Electronic Tips
New - Sevcon 48V In 14.1V 300W Out DC/DC Converter
Sevcon DC/DC Isolated Converter / Voltage Reducer 48 to 12V, 300 Watt - 622/11201 (5-Pin)
Test DC-DC 20A 300W Power Module ( Step down ) - YouTube