Ok, I just got a little time to test the LED’s that Neal found and all I can say is I LOVE them!
First here are the specs, they are D4 bin Neutral white LED’s but interestingly they are putting out slightly more lumens then my “E2” bin I tested previously. I am thinking they were not real E2 bin emitters.
They tested out fantastic, 2600 lumens at the turbo 2.5A that Giggles uses. A bit more from a cold start.
Here is the CW xhp35 HI that came in the prototypes, it is obviously not a top bin emitter.
Here is how they compare:
The only downside to the neutral white emitter is the higher Vf. Looks like it is about ~0.25v higher then the prototype LED.
Luckily the new cell carriers lower resistance helps balance out the higher Vf of the emitter so regulated runtimes should be similar to prior tests. With the higher output the current can drop a fair amount and you still end up with the same lumen output.
It is a trade off but seeing as the NW D4 LED makes basically the same lumens at 1.5A as the CW does at 2.5A, I would say it is well worth it.
After I finished the technical testing I put the other LED into Giggles and boy, it is amazing looking. A nice slightly rosy tint that concentrates into a sun like hot spot. Simply amazing looking.
I can’t wait for it to get dark so I can see what it looks like outside. I might even try to get a beamshot humidity or not.
I want these LED’s to go up for sale somewhere, I can think of several uses for them in other lights. My 3C xhp35’s I had in my other lights now look washed out and dull in comparison.