Ditch the blurple lights. Don't feel bad, I did the same thing when I started. The chinese lights get way too hot and they are not very efficient. I use HLG lights now. they cost more but they are way more efficient and have a better spectrum. The plants look like they need water. Get yourself a...
I don't think the Amazon bulbs a 730nm. I think they are 620-650. (if you have good grow lights, you're already giving that spectrum to them.) try these: Far Red Initiator Puck. I bought 4 of them for my 5x5 and they ran me about $175. If you have a smaller area you won't need as many.