NEW DC-DC 12V 24V to DC 200V-450V 220V 380V High Voltage Boost Converter Step Up | eBay
The Newest Small Size High Isolated Regulated 5V, 12V, 24V to 200V, 250V, 300V DC/DC Converter - China DC/DC Converter, DC Power Supply | Made-in-China.com
250W isolated DC/DC converters, large input range 200 to 400V