you'll get the phonebook. entirely, subjective. 1 plant... not enough intel. the fact u have heard of cobbs, sounds like you've put in some homework. i wouldn't recommend the light i currently burn 2, of 3- by kingled... cross em off. they rated well... ur indoor... regardless of full spec,/whatever... i would recommend the more red, end of the spectrum. reds=bush n fattys. blue, equals stretch.
not sure i would b lookin at cobbs, with a $75 budget.
seedtostoned on YouTube, has varied, budget, grows. the $... never ends n certainly, not at $75. welcome! gotta start, somewhere. ur gonna miss that 300w... when considering, $75 lights.