Frankly, unless I do it up myself, pot the driver, seal everything up tight, I don’t count on any claims of drop-resistance, water-tightness, etc. Some bozo at the factory could run short of O-rings and keep assembling lights without them anyway, y’know? So even if everyone else’s is perfectly water-tight, you might be one of the lucky 0.1% whose light is missing a critical O-ring. And unless you take it apart first, or give it an unfortunate dunk, you’ll never even know.
I’m impressed with Sofirn’s attention to this thread. :sunglasses:
It sounds like their light has a problem, but they are taking direct action to address it. Hopefully, they’ll figure out what is causing the problem and fix it for future manufacturing runs.
I bought an SP10A and a SP10B. They both arrived today. The SP10A failed with the same symptoms as reported in the OP. The difference is I didn’t drop it. I just swapped the AA NiMH for a 14500 and the flashlight flickered and quit. It tried to start a few times but is now inert.
I’m thinking bad switch or flaky driver. This one will be going back to Amazon for replacement.
ahh, you guys are gonna make me regret my decision to order blue sp10b :person_facepalming: i am thinking maybe better choice was to get another sf10, it is cheaper and looks more reliable…
Check to see if the emitter is attached. The head has to be removed because the spacer will hold it in place with reflector in it. Mine flickered before it died. I’m guessing cold solders.
But I promised a drop test, I want to know too if my units are prone to failure. With the kind assistence of my 7-year old son, here it is. I’m happy to say that although the drops did cause mode changes and switching off, both lights kept working fine.
A couple days ago, only a day or two after I received it, I accidentally knocked my new Sofirn SF14 off the counter onto a bath mat. It stopped working. I ended up taking it apart and noticed that the LED was no longer attached to the MCPCB. I did a sloppy half-assed “reflow” so I could confirm that the disconnected emitter was the root cause, and not something like an inductor breaking loose. I confirmed the diagnosis, and in the process did an accidental dedome mod. I wrote sofirn via aliexpress. I haven’t heard back from them yet.
Sometime in the interim, I dropped the red SP10b I’ve had since ~December onto a harder surface. It still works fine.
5mm solid oak on top of 16mm birch plywood, so a 21mm pretty solid wooden floor
The UI is quite perfect: short clicks for switching on and mode changes, slightly longer click (just right) for switching off. No memory, start in low :laughing: . Just the low mode is off, way too low. I hope with another emitter it is a bit better. (I guess the low can not be adjusted, like with the Manker UI?)
LOL, he is not into women yet, he finds the girls mostly boring and annoying. He loves Australia though, there was a nature series on Australia on TV and now he wants to go there. So beware of your daughter after all :smiling_imp:
Thanks, next is not a drop test but an emitter swap, I’m going to try that high CRI Samsung led in the red one.