You have successfully added from to your part list.
The Tridonic 1/2x26-42 TC Pro is an energy saving long life lighting ballast, specifically designed for 4-pin compact fluorescent lamps. This lighting ballast can run 1 or 2 circular fluorescent lamp. This high frequency ballst has an average life of 50,000 hours.
Flicker free operation. Low noise. Fixed output. Safety shutdown at end of life. Automatic start after replacement of defective lamps. Constant luminous flux irrespective of fluctuations in mains voltage. Large temperature range. Devices can operate either 1 or 2 lamps. For luminaires of protection class I and protection class II. Intelligent Voltage Guard (overvoltage indication and undervoltage shutdown)
Wattage = 18 W, 22 W, 24 W, 26 W, 32 W, 42 W
Number of Lamps = 2
Ballast Type = Electronic
Supported Lamp Shape = T5c, TC-DEL, TC-F, TC-L, TC-TEL
Supported Lamp Type = Compact Fluorescent
Voltage Rating = 220 - 240 V
Dimmable = No
High Frequency = Yes
Length = 123 mm
Width = 79 mm