i have for sale an original STS Serge PSU, a 'PS4', for 280 euros. its located in Athens, Greece. if you are interested, let me know, to get you in touch with a friend of mine who is selling the item for me. its in perfect conditon of course.

the PS4 can power up to 3 serge panels. it works with 230 volts, so it makes sense for EU countries.