A lighting device, comprising a lighting device element and a light engine component that is removably supported by the lighting device element. In the preparation method, the PGA is cross-linked by a cross-linking agent and then passes through a spinning nozzle to form PGA fibers. The remaining portion of the contact via is then filled with a more conductive material. The device has a spacer is suitable for use with a wide range of aerosolized formulations, particularly powders.