For color printing a voltage stabilizer is virtually mandatory. Voltage fluctuations not only affect the light output, but the color temperature of the light as well, making it difficult if not impossible to achieve the correct color balance. Even for B&W printing, you'll get more consistent exposures and repeatability using a voltage stabilizer. And voltage fluctuations can also shorten enlarger lamp life.
The Omega Solid State Voltage stabilizer has been specifically designed for use with the Omega Cat. No. 412-021 standard power supply used with the Super Chromega D Dichroic and Super Chromega E Dichroic colorheads. It simply plugs into the back of the power supply, so there are no additional cables or cords to deal with. And it provides constant voltage output to the lamp circuit regulated to better than ± 1% from inputs of 90 to 130volts.
The used products are fully refurbished, recalibrated to new factoy specifications and have the same 1 year warranty.