Need help with 400 watt hps

anyone know how one is made. and were to find those parts.

heres a link to some...peace

http://www.1000bulbs.com/High-Pressure-Sodium-Ballasts/

spliffbazz

heres another link hope this helps you ....peace

http://www.htgsupply.com/producttypes.asp?categoryID=3&subcategoryID=95

spliffbazz