Fenix E1 tech question?

[Buck91]

Does anybody know the driver specs for the old Fenix E1 (with the Nichia ?Rigel? led)? I ask because I've been EDC one with a Seoul P4, which has been great for me. I recently replaced the slightly browning P4 with a U2SVOH, and- maybe its just the tint or the pure flood- but it appears to be dimmer than my E01 :thinking:

I know the E1 was rated at 12lm for 3hrs originally, but I'm rather unfamilar with the Nichia's behavoir and driver requirements. I'm trying to figure out if I botched the emitter swap or not. It seems similar in brightness to before, although I obviously cannot compare side by side.

 

[EngrPaul]

Does anybody know the driver specs for the old Fenix E1 (with the Nichia ?Rigel? led)? I ask because I've been EDC one with a Seoul P4, which has been great for me. I recently replaced the slightly browning P4 with a U2SVOH, and- maybe its just the tint or the pure flood- but it appears to be dimmer than my E01 :thinking:

I know the E1 was rated at 12lm for 3hrs originally, but I'm rather unfamilar with the Nichia's behavoir and driver requirements. I'm trying to figure out if I botched the emitter swap or not. It seems similar in brightness to before, although I obviously cannot compare side by side.

My E1 Seoul is much brighter than the E01. Try to see which is brighter in a dark room ceiling bounce.

Are you sure the original emitter (itself) was browning? The tin-plated region around the emitter typically becomes orange with age due to copper diffusion, without affecting output. That emitter was probably in perfect shape...

 

[Buck91]

It was an excuse to try out the U2SVOH. Really liked the results I got from them in my Victorinox 2AA leds (and the USVOH in my MagLED) :-D

I may have poorly soldered it, gonna have to tinker with it some more as it does not seem as bright. What was your trick at getting the leads soldered up?

 

[eebowler]

The beam characteristics would be the same. Did you check if there was a difference in current draw? From my experience, there is a SIGNIFICANT increase in brightness between USVOH and U2SVOH LEDs, so much so that I thought there was degradation of the older Seoul LED...

 

[Buck91]

Well, I re-did the U2 installation earlier today, and with some success!! It was a real pain getting the pcb tinned, though. I think I damaged some of the led contact tracing when I removed the old one, and that was the problem (bad solder contact resulting). This is really just a hunch, though.

Seems to be much brighter now, though I still want to re-compare it to the E01.