LUMATEK HYDROFARM 1000w 600w BALLASTS

I have 7 Hydrofarm magnetic 1000 watt ballasts that can be used with either HPS or MH bulbs (there is a simple toggle switch to make the change) and they have separate plugs for either 120 volt or 240 volt. 4 of them are the Xtrasun brand (2 of these had the igniter and/or capacitor replaced last year), 1 is a SG (SGC100) brand, and 2 are the Hydrofarm brand. Priced to sell quickly. The first $70 each takes these.
I also have 3 electronic/digital Lumatek ballasts. All of them can be used with either HPS or MH bulbs. All can be used with 120 volt or 240 volt. Mine have cords for 120 volt.
2 are the dimmable Model LK600 with settings for 360w, 400w, 600w, and Super Lumens. I am asking only $115 each for these.
I also have 1 dimmable Model LK1000 with settings for 600w, 750w, 1000w, and Super Lumens. I have the original box, the original receipt dated 5/7/12 for $288, and the warranty. This one is still under the 5 year warranty (3 year full warranty until 5/7/15 and 2 year prorated) from the date of purchase (Call the dealer on the receipt or Lumatek for how that works. I included pictures of the receipt and warranty details). I am asking only $145 for this one. I spoke with the technical people at Lumatek and they recommended I buy these Lumatek models rather than the Lumatek models with fans because they won`t get dust and dirt in them and there is no fan to break down. Compared to magnetic ballasts these run a lot cooler and are more efficient with the energy they supply the bulbs. This was the type and brand I was switching over to. They give you lots of flexibility compared to the magnetic ballasts.