Trying to run a 110V device on a 220V supply without proper conversion can lead to serious damage. To safely use your devices in different voltage regions, it's important to understand how to convert 220V to 110V effectively and safely. Why Use 110V Instead of. . 110 volt from a 220 volt inverter? I have a project in The Philippines, the utility uses two 110 volt legs with a ground, no neutral 60hz. The original contractor here had no idea what he was doing, nothing on the system was correct or. . My Multiplus inverter/charger is 110V but I would like to be able to plug into the grid in said countries. Would a simple step down converter plugged into the grid end work for this? Seems like these types of devices only work for some types of devices (I'm unclear as to why): Is there a standard. . How can a 220v system be modified to run on 110v? Can I just open it up and replace a power supply (since many mini-splits use DC/Inverter systems anyway), can the 220v power supply be adjusted similar to a computer power supply with just a switch (I doubt it, but I have never looked for one)? Or. . Trying to run a 110V device on a 220V supply without proper conversion can lead to serious damage. It's wired for use with a 220V generator, but his generator is a Honda 3000 watt inverter that only supplies 110V via a 30 Amp plug.