I was just informed that of the four kits we got ahead on, only two can be with 120V power transformers. That's all we have in stock at the moment. Oops, make that one 120V kit in stock, we just had an order for a 120V Crack - thanks Mark! We should have more 120V power transformers for Crack kits around the 22nd of the month. A 240V kit is no problem, plenty of 240V transformers in stock.