Oh, thats a bit crap eh. id demand they send two in replacement because of the delay youve already had waiting for it, and for their incompetance in not packing it properly so it doesnt get broken.
And id demand payment for replacement seeds too, tell them your seedlings have all stretched too far now to be worth growing because you had to wait so long for the more powerfull light, crikey i mean most places get your stuff to you within 48hrs these days because they know growers are depending on the equipment ordered.
But anyway im an awkward fucker when it comes to stuff like that and i love to kick up a stink if they dont do what they say lol
Yea just run the new light on the same light cycle as your doing at the mo, although i thought 18/6 or 20/4 was the best light regimine for LR's and LR crosses start to finish?