t5 or t8 led bulbs . for flower . any body

I have been using t8 led tubes for veg actually very happy with it . I am looking for a drop in for the t8 preferred or the t5 led . want the spectrum for flowering only . I cant find a actual selection of there . also I wonder how 8 of the t5 led would compare to a actual put together led light .example mars hydro .

thinking of buying a Apollo 20 this Friday . I can get them for 400 shipped to my door direct from china and if it sucks ill just put it on ebay sell it for 450 used plus shipping. anybody try the Apollo led ? don't have to be the 20 . just any of them .