Hey.
I got a 250 watt light running right now too. Those stems look weak there definently gonna need some artificial support when those buds get bigger. Remember for your next grow if you treat your plants like babies there gonna act like babies, (yea I stole that from someone lol) thats why im twisting and snapping my stems during veg and early flower. Also just place your hand at plant height and determine if the light distance is to hot. You will know.