50w HPS? You should be looking at 1 or 2 600w lights. There must be a supplier in Germany. If not and if you are close enough then a drive to the Netherlands should set you up nicely.

Some ballasts will fire both MH and HPS bulbs. Some will also do multiple wattages. Have a look around online and you'll find the info you need.
bigsby Reviewed by bigsby on . Total Newbie with several questions ok first time ever growing cannabis, it is technically legal where I live, you can own and use, but not sell, barter, trade, or transport. So only legal way of course is home grown. Now comes the strangeness if you will. I am currently preping an area for a hydroponics set up. It is a specialty build Giant Iguana Enclosure, no more iguana so figured use it for something. Reason I state this is to point out the enclosure is able to be controlled for humidity (55 up to 98%), Heat 24C up Rating: 5