I seen a grow with an 70 watt hps and a 100 watt mh for 2 plants and they were very heavily budded so i know it will work..As long as other factors are attended to properly. Also dont be afraid to mix spectrums through complete grow. Most only use hps for flowering, But the sun isnt just red spectrum it is mixed. Just a theory i would apply seeen that proven. Find your comfortable style and perfect it ... Must agree looking into the led when your skills improve and get more seroius would be a great option ,but there price is alittle higher then conventional lighting methods.