HELP sizing supplemental light . UV and Far red

I plan on adding 385nm UVA as well as 660nm,730nm Far reds . To my flower set-up

I will also have a separate 730 nm sleep/flower initiator .

How much UV and how much Far red should I add in proportion to my main grow light ? I’m running 640watts in a 5x5 (4x4 canopy atm). I have a 3000K QB and a 3500k cob rig for flower .

Also what would be a sufficient size sleep initiator ?

For a 5' x 5' area I use 4 of the initiators from Rapid LED. I believe I got the math from a Growmau5 video.

Awesome thanks . I’ll do the same and use 40w in my 5x5 for flower initiation (more of a 4x4 canopy atm)

Aiming for 50watts of UVA 365nm and 50 watts of emmerson effect lights. ( 3:1 ratio of 660nm to 730nm). This gives me 7% of both uva and emmerson of my wattage between all the lights .

UVA does nothing for cannabis.... Your looking for UVB at 280 to 315 nm.

Flower initiators are only a way for the maker to make money from you..... They don't add enough of anything to your final results..