while we are on the subject, my bulb is a grolux hps with enhanced blue spectrum ( sorry, im not tryin to hijack the guys post, its probably relevant to the origonal question)

i was just gonna get a normal hps, but the guy recommended this enhanced bulb...anyone know if thats a good thing? the bulbs are only a little bit more money than standard and the plants seem to be doing well, the light also, is a lot more natural looking than normal hps, i guess thats because of the extra blue rays?