So i have an opportunity to buy 4 used ipf968 lights for 200 (a great deal). The seller also bought them used but they are apparently still in great condition (ive seen pictures). Is there a downside to buying used lights, does any of the hardware seem to randomly brake or is the only thing that generally goes out with age the bulbs?

 

I bought some used LightForce 170s and they are in great condition just some light surface rust on the bolts.

 

Check the buld holders to make sure that they are in good condition ( no rust and not loose anywhere). I doubt that you can replace these. Also, check the houseing's for rust.