Ideally 2x per product(TL 2.0, Half and Full Stack, BlueBlockers) - static image or animating letters. Only one message/selling point (eg treat skin problems) and logo. Aim for a clean design. If possible a person should be in the image.

Or you can also try to implement something like this

or split the graphic in two parts like this

Videos re-edits from Instagram. Generic advice. Videos should be max at 30". Opening should be about problem, mid can contain some information(stick to one selling point per video) and end in a positive way/cta.

Music licensing problems? Else we can probably run as is https://www.instagram.com/reel/CrbEFXLo4ZE/ , https://www.instagram.com/reel/CpowTZkIOmd/ , https://www.instagram.com/reel/CnMXbgBDiVs/

Cut the first part showing red light and infrared only. Go straight to pain relief and usage. https://www.instagram.com/reel/CtUoJBbuOUI/

Make "improve your sleep" a title and skip the intro. Start with The red light in the morning is a start followed by a bright light... Keep one of the two benefits melatonin or circadian rhythm. You can produce two videos if you want to show both benefits https://www.instagram.com/reel/CthU9lVokPL/

Make a caption How red light therapy works for pain relief and skip the fist shot. Start talking about how it works immediately. https://www.instagram.com/p/Ct1IJFlogwb

Boomerang Videos of switching light on and off? 1 or 2 per product
Could be done with a person instead of props.
Another option, a boomerang of a person sipping coffee in front of his Half Stack.

Videos on Instagram about the advantage product were nice. Something similar for half-stack and full stack would be great.
https://www.instagram.com/reel/Ct6cyq0IHXo/
https://www.instagram.com/reel/Ct4FF7JII1Z/
https://www.instagram.com/reel/Ctq8khUoubH/ , i would trim the beginning and start just before she sits