light question?

is it possible to grow a plant on a aerogarden on a 12/12 light cycle? and what would be the yield?

Probably possible with great amount of effort but not probable. If it were that simple I'm sure most new growers on the forums would be reportedly using it. Better off getting grow light system.

anythings possible but you need to give more info for a good answer...you starting from seed? 1 plant or many? how long veg time?...etc.etc.

If you don't have an AG I wouldn't buy one. Too small a res, not worth it. If you must try an autoflower dwarf like red dwarf or white dwarf. They get 24/7 light the whole cycle.