I'm not sure about the wattage but I use a Platinum Therapy BioMax 450 Light and it puts out 450w:
https://platinumtherapylights.com/products/biomax-rlt?variant=15666982649922

As far as Collagen Protein, I use this:
https://www.amazon.com/Collagen-Powder-Peptides-Hydrolyzed-Supplement/dp/B0176QKIJI/ref=sr_1_29?keywords=grass-fed+collagen+protein&qid=1565786727&s=gateway&sr=8-29