Some devices can also be more efficient when using 230V. Eg: PSUs https://electronics.stackexchange.com/questions/469913/computer-power-supplies-usually-have-h

Some devices can also be more efficient when using 230V. Eg: PSUs https://electronics.stackexchange.com/questions/469913/computer-power-supplies-usually-have-higher-efficiency-on-230v-than-on-115v-why https://electronics.stackexchange.com/questions/469913/compu...