No they don't, making Hps not suitable for vegging.

Now halogens will cause problems for you. You would be better off using an Hps bulb than 5 halogen bulbs. The reason is, it is not the correct light spectrum. The plants will take in maybe 8% of the rays coming out, thus, a waste of time making about 92% of the light output useless. Second, is they give off WAAAAAY too much heat. You are guaranteed to burn your plants using those and keeping the growroom cool enough will be an impossible task.

Use floros/CFL's, or Mh bulbs for vegging
Use Hps, or CFL's/floros for flowering
Use a mix of an hps, and mh for flowering

Those are your best bets when it comes to growing. No other bulb will produce worthwhile pot. I would rather see you use CFL's than halogens, or MV bulbs. They give off too much heat like I said. Hope this helps...