need clarification on light please help

High Tech Garden Supply light has an option for an MH convertable bulb, does that mean if i get it, i can use the one light system to run MH bulbs then change it out and run the HPS bulb? or am i completly wrong and it means something else, please help

yes u have 2 seprat bulbs 1 mh for veg and 1 hps for flower, but to be honest i have a strait hps ballest and i run a mh durring veg and change over 2 hps for flower for 3 years and no problems.

yes you are right...

my girls you say u just screw in the MH bulb to your HPS ballast and it doesnt make a diffrence haha?

it is just dim for the first 3min. or so then it fires up. just takes longer thats all to fire up