4 Lumatek Dual 600 watt ballast

I have 4 Lumatek Dual 600 watt ballasts. I bought these new about 3 years ago, used them for a about 6 months, put them on the shelf and then started using them about about 6 months ago. They work great and haven`t had any problems. They are 220/240 volt only and come with the correct cords.
I can meet you at the Lowes on Bayshore Blvd, or somewhere else equally safe
I am asking $100, but I am open to reasonable offers, especially if you buy multiple units.
Thanks for looking!