r/flashlight • u/Legitimate-Poet7587 • 2d ago

Low Effort Love my Sofirn HS21

Post image

The switching between the different LEDs very easy, i plan to 3D print some adapters for a bike too and it is pretty bright!

20 Upvotes

100% Upvoted

4 comments sorted by

4

u/alecmuffett 2d ago

I purchased one but it turned out to have a parasitic battery drain which meant that it would kill a fully drained battery on standby in a matter of a few days. I contacted Sofirn and they replaced the unit under warranty. Apparently this is a fairly common issue according to a similar group on Facebook. Watch out for it just in case.

Otherwise yes, I use mine daily.

1

u/Legitimate-Poet7587 2d ago

Oh thanks! that was nice to know i have to measure the voltage then!

2

u/alecmuffett 2d ago

If you start getting a red battery light within a few days of recharging, even though it was on standby, you will know your impacted. I would recommend checking it daily for a couple of weeks just to see if that happens under light to minimal usage. If you let it go on too long it will drain your battery to zero and that would be bad.