I have two PFO HQI Halides. HQI ( Double sided halides unshielded ) puts out a greater intensity over a single sided halide. currently the bulbs are 10,000K which I would like to know if they will work well or should I get 6500K bulbs. I would like to use the 10k cause that is what is in there now and they are 100.00 bulbs soo i am looking for the pro's and cons. they are 250watt but these are not standard bulbs, they put out a very high output.