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I was going to ask about that. I am interested in one of these with a 219 neutral led and the driver recessed into the sink to allow for an 18350 to fit an E1e.I'm planning on offering the Nichia 219 emitter as an option, once I know I can get my hands on a few I will make that option available.
After 3 months wait, I recieved two drop-ins from Jon. Unfortunately, they're not as ordered. And there's been no response to three weeks of PM's and email. So, I have two 6V, three-mode 219 drop-ins to trade for any high CRI single mode two cell drop-ins for the e-series, just PM me. Oh, and a very sour taste in my mouth.