The square AC option (variable 5-60 Hz) enables improved cleaning results and a more homogeneous surface treatment with consistent properties. Passivation of pole plates is not required, and there is no need to alternate the cleaning frequency or change the DC poles (every hour).

Switched-mode power supplies, along with the option of square AC, also enable further cleaning effects that were impossible with conventional thyristor technology:

• H₂ and O₂ take effect at same time and same surface area with improved cleaning force by synergy
• Discharge of explosive gas (H₂ und O₂) with AC is nearly zero
• Tenside activity is higher with AC
• AC pattern and frequency could be adjusted in a wide range
• Low-energy technology
• Efficient cleaning system
• Low gas generation
• Modular system