they wont be burned unless the bulb is too close, thus they get burned from the bulb's heat.. if u put them by ur window, u might get poor results.. if u put them under the metal halide, u'll get better results.. whatever's in ur capacity to.. u can get them started wit a regular cfl bulb.. 2 25w ones would probably be fine in ur case.. then u could use the mH later on, perhaps during flowering..