> Maybe that's why it's so expensive compared to other modules which can get away with lower efficiencies? It's expensive, because most people don't need that,

> Maybe that's why it's so expensive compared to other modules which can get away with lower efficiencies? It's expensive, because most people don't need that, because they just use a wire to power their device. This has some very niche uses in high voltage insulation (where you need the power on the other side, but really really don't want high voltage to travel back down the line and destroy your device.