Search it up on Amazon, you will find a lot of grow lights. When I had a small sump, this worked just fine for me. Now I have that running on my phyto culture.
https://www.amazon.com/Upgraded-Spectrum-Replaceable-Flexible-Gooseneck/dp/B07PQDNFB9/ref=sr_1_26?crid=3PYZF7VSCY6LC&dchild=1&keywords=refugium+light&qid=1619184764&sprefix=refug%2Caps%2C159&sr=8-26