Most efficient e21a 2k.

I want a moonlight to medium light, e21a in 2k. What are the current best. I saw it wasn’t the best for moonlight, but want something in 2k and after seeing comparisons I am in. Hank has several lights available, kr4 dv4s etc I believe. I just want a low light, dependable one to try. I tried looking up convoy but had no luck.