i just ordered another hood and 400w hps off the net. frankly i think its the best way to get them. but if u dont wanna...u can go to a large electrical supply house and get a HPS. prob cant get a hood from them tho...but they have the hps for cheap...ya need the hood tho for great grows. fyi i paid 260$ for 400w plus ordered a super light for 20$ extra.