The present invention is related to aqueous conditioning composition for hair comprising at least one alkyl glyceryl ether and at least one silicone compound with at least one quaternary ammonium group in its molecule. The dielectric layer is formed by chemical vapor deposition of a boron-containing film on a substrate, at least a portion of the deposition being conducted without plasma, and then exposing the deposited boron-containing film to a plasma. In one instance, a sealing material is extruded around the linear wound to help form a seal. One or more additional windings are introduced as part of the energy transfer element.