I am using a 600 watt MH lamp for verge. Then a 600 watt HPS FOR FLOWERING
300 watt induction for vegetative. I also have a 4 tube T5 I add later in veg.
600 watt MH/HPS for flower. I run my MH the first and last week of flower.
I don't buy expensive bulbs for the simple fact they wear out so quickly. They fail by design. Can't wait until LED's are more reasonably priced.