I have heard in general that a 10V power difference should not affect most equipment, so when bringing electronics from the US which has 120V to Japan which has 110V from the utility, I should not expect any adverse affects. Is this same logic the same for dimming devices? Specifically I have some 110V lamp dimmer caseta products that I'd like to use. Should I expect any perfomance problems, or worse yet, is there any safety risk? (I assume not since I am supplying undervoltage, not overvoltage).
As a second question, if the lamp dimmers work, would that be the same with caseta inwall dimmers, such as the PD-6WCL? It also specifically lists 120V, but could that be wired in where the utility provides 110V?