This goes along with the "70 watt hps??" thread but its slightly different. What are the components needed to run a: -35 watt hps -50 watt hps -70 watt hps and I read on this board somewhere that one of the lamps(The HPS or MV)is better for flowering and Veg. Which ones best for which? I also heard that both are used for flowering for better spectrum. But that'll raise my electic bill higher should I keep one on for 6 hrs then swith over to the other for six hrs? Your help is appriciated.