i really wish people would invest like atleast A COUPLE MINUTES reading up about things before asking such questions. Halogen?? please... check out the growfaq section at overgrow.com, buy yourself a few books and then you will know why a question like 'will halogen bulbs work' make me so fustrated. If you want us to take you seriously and help you with your grow, you need to show that you are serious in what your doing. Why offer help to someone who is gonna half ass the job????