Giesemann Fixture - Tridonic Ballasts

[parkinsn]

I tried to source these ballasts for another guy on here, its and OEM thing only. Keep in ming that the ballast housing for these fixtures also has a x-former in it to step it up to 240v from 120v, so you may have to add a x-former to your list of things to get. Also the bulb size is slightly larger on 250w that the 150w so you will have to get new sockets as well.