Apparatus and configurations for imitation candle devices that facilitate remote operation and usage of electronic candles are described. The disclosed features include an assembly to hold a detachable electronic module for an imitation candle device. The assembly comprises an installation cavity formed inside of a body of the imitation candle device, including: a first subspace extending between a first surface and an opening; a second subspace extending between a second surface and the opening, wherein the second surface is recessed and is situated at a first distance from the opening; and a third subspace extending between a third surface and the opening, wherein the third surface is recessed and is situated at a second distance that is greater than the first distance from the opening; and an engagement element that extends into the installation cavity through the opening.