no they will work just as good as 4-8 foot flouresents i used two 500 watt halogens and they seemed to grow good and strong i never tried flowering with them though
medical grow you have no idea what you are talking about so don't give advice to people and make them waste their money on shitty lights. Read up and then give advice you prick
i've lit cigs off the bulbs from 500 watt halogens that i use for work at night. definatly a no go for growing and if you really think you can grow with them i hope you have fire insurance.