Like a dimmable flood light?
https://www.amazon.com/SOLLA-Dimmable-Waterproof-Equivalent-Floodlight/dp/B08H1KHKV5/ref=mp_s_a_1_8?dchild=1&keywords=Dimmable+flood+light&qid=1633533924&sr=8-8
Or do you want to build something yourself?