The tridonic pc 1x18 24 w basic linear is a basic non dimmable high frequency ballast to run 1 x 24 watt t5 fluorescent tube or 1 x 18 watt t8 fluorescent tube or 1 x 22 watt t5 circular fluorescent tube or 1 x 18 watt f shaped compact fluorescent 1 x 24 watt f shaped compact fluorescent or 1 x 18 watt long single turn compact fluorescent 1 x 24 watt long single turn compact fluorescent tridonic 22176001 click here to see data sheet and wiring diagrams