18w 10k Pc 50/50

[MrFish]

Is there any reason why if I imported these from this US site, I couldn't just replace my current lamps -

http://nanotuners.nanocustoms.com/nanotuners/product_info.php?products_id=229&osCsid=ab5b74b9b97224fb78bf616357f4e8a9


I've never seen even the 10K 18W PC lamps in the UK