depending on what brand,and length of bulbs.ATI's and Geisiman are excellent bulbs to go for,well worth the moneyhow much do t5's cost?
Mine cost R920 for everything.
Sure...
1X external ballast 24W (can fit 2 t5 globes)
1X reflector (took a long one and cut it in half).
2x Globes
The make is HAGEN GLO T5 HO
HAGEN - GLO T5 HO
Here is my old thread, the hood will be different to yours.
In retrospect I would not do it again, but rather get pendants with better reflectors.
But I hope your retrofit goes better than mine,