Si Fu Yuan regulator board, SX440 Based on the increase in the SX460 required DR00P regulation of parallel and external TRIM control, is currently the most the most practical parallel-type AVR. Technical parameters: Voltage build: When remanence automatically build pressure greater than 4V25Hz Input power: AC 190 ~ 260V 50/60Hz Output: 90V DC Maximum Voltage (when the input AC 207V) Current of 4A (continuous)