For a Sundrop, it makes sense to look for Seoul Sunlike diodes. I see that they exist at 3 volts, but are still weak in lumens, if only put 4 pieces next to each other. They have an extremely pleasant shade. I bought a lamp for the E27 base, the lamp is inexpensive, but they are installed there, it's just a joy for the eyes.
Yes, I have 4 HIVE drivers. 3 are Nichia 119’s, one is a 4200 XP-L HI. I am keeping them should I ever find myself in a spot to resell the lights. I also tend to swap in a HIVE if I am on the road, as it gives me an option to use CR123’s.Jfowler,
Do you still have the original drivers (3S or Hive?), and are they undamaged?