This igniter is compatible with Berson B410 UV lamps and is used to initiate ignition of the lamp at start-up. The model is Vossloh Schwabe Z400S and corresponds to original part no. 0.45.433. The igniter delivers firm, stable and reliable start-up of the UV lamp, which is essential for correct operation and effective water treatment. Key benefits: Fits Berson B410 UV lamps. Model: Vossloh Schwabe Z400S. Replaces original part no. 0.45.433. Provides reliable, fast ignition. Suitable for demanding operating environments. Please contact us if you are unsure whether this igniter fits your UV system.