Renulife Violet Ray Health Generator

The Renulife Violet Ray Health Generator (also advertised as Renulife Violet Ray High Frequency Generator, and simply the Renulife Violet Ray) is a violet ray-type device, available in several models and coupled with a variety of glass vacuum electrodes (filled with argon gas to produce the requisite violet glow), which was marketed as an instrument for electro-therapy. It was sold by the Renulife Electric Company of Detroit, Michigan.