There are a lot of different compatible lens that work with the Hekla socket. I want to find one that is good for lens size of about 14mm.
LEDiL-connector-and-socket-compatibility_2025-01-15.pdf
Here are the options I need to narrow down

I decided to purchase a bunch of these to test.
I was originally using the CARMEN-50-W-C until I realized it wasn’t recommended for LES (light emitting surface) > 10mm. So I wanted to find something that would be better optimized for my LED with LES of 14mm.
I found that most of the options for a larger LES were 70mm in diameter. After installing a few of the 70mm options they just felt too big. I wanted to be able to stick with the a similar lens size ~50mm diameter. I could keep using the CARMEN-50-W-C because it still worked. But with the LES being a little too large it seemed like there was more light leakage around the sides because the lens was too small.
That leaves only a few other options. the ILONA-WW, BROOKE-G2-W, and MIRELLA-G2-WW.
The ADELIA-50-WW2 and YASMEEN-50-WW-C2 also seem to work well even though they are optimized for smaller LES.
I don’t like the MIRELLA-G2-WW because it leaks a lot of light between the LES and the reflector.
I think I’m going to go with the BROOKE-G2-W (paired with BARBARA-RZ-LENS2) because its small and simple and looks good, and it is the second lowest cost option.