What is this?

Hey guys Adrien here again. Does anybody know what this is? Maybe a calyx? please help plant is only 2 weeks in veg stage. any help is appreciated thanx!!!

Anybody?

Cant tell whether your talking about the new branches starting or the stipules. Draw an arrow on that pic.

and are the 60 watt equivalents good? what do you recommend.

Looks like a pot plant.

Really though it's too early to tell. Those green spikey things aren't pre-flowers but stipules, which are essentially like a vestigial organ for plants.