Ctsm light increase needed ?

[Epiphyteme]

So I sent these pictures to Fred Clarke to be hyper vigilant of any issues that may have arisen thinking leaving the curtain up on my southern facing window sunburned the little guys , turns out he says they need more light... I can get it I have a southern exposure it’s bright and has direct sun a bit here and there but something about the way it comes in a coating on the window something I’m not accounting for is cutting the light. So for now I have one of those super terrible 45w(25w actual draw I think ) roleadro brand panels off amazon with the blue and purple leds making that purple space color . I ordered a 3ft sunblaster to supplement it should be here late next week so my questions are

Should I hook up. The cheap blurple panel a foot away ( is that enough?) to supplement them until the sunblaster gets here

Or just wait for the sunblaster

Should I leave it to on a full 14 hours or slowly introduce them for either light ? Should I start them at 12” inches right away or slowly decrease from like 18”

Last part is when I supplement with either light should I leave the sheer curtain up or down ? The light really only beats on the area they are on between 12-3 ish do if I had to I could just shut the light off for those three hours if I leave the curtain up or leave the curtain down and in all the time