Your question was it possible to get 600g with this light. Trouble is led is very confuse ing, if they tout it's a 600 w equivalent it's really half that draw, it is possible but would take a huuuge amount of time, effort and veg months,topping, lst , cropping etc. This light will be fine for two plants and imo you should be able to nab 4-10 oz dry depending on how you grow etc.they look great! Well done