The Tridonic PC 2/26/32/42 TCT PRO is a non-dimmable high frequency ballast to run: 2 x 18 Watt long single turn compact fluorescent lamps 2 x 24 Watt long single turn compact fluorescent lamps OR 2 x 26 Watt double turn compact fluorescent lamps OR 2 x 26 Watt triple turn compact fluorescent lamps 2 x 32 or 42 Watt triple turn compact fluorescent lamps OR 2 x 22 Watt T5 circular fluorescent tubes. Tridonic Part code 22176410 Click here to see Data Sheet and Wiring Diagrams!