4 Lumatek model:LK7240 ballast power boxes

I have four Lumatek ballast power boxes. Specs shown in photo. They`re really nice, in good condition and they all work perfectly. Perfect for the indoor grower, and they`re purple so you can do your hydroponics with class.
These guys retail for $200 a piece so I`m asking $600 for all four. It`s like a buy three get one free deal. Email or text at