These are great, and you can buy the bulbs separately: https://www.amazon.com/gp/product/B07VVK9WK7/ref=ppx\_yo\_dt\_b\_asin\_title\_o03\_s00?ie=UTF8&psc=1

I bought these on Dec 10, 2020. I am using a smart outlet to time them. 300W LED Grow Light, Kolem Plant... https://www.amazon.com/dp/B07VVK9WK7?ref=ppx_pop_mob_ap_share

I have vandostylis, bulbophyllums, dendrobium Antenantum, coelogyne fibrimiata, maxillaria bloom. They lasted well so far.