S11C is a great deal for $8. Works great. Nice neutral beam tint. Direct to moonlight or High from off. Hidden strobe. Smooth zooming function. USB-C charging. Strong magnetic flat base. Cell and cable included. Might be best $8 I ever spent on a light.
All functions tested and work fine.
Keep it away from water - check! $8.
Only complaint no spare o-rings and needed to grease threads. Not a big issue.
Yeh, think I got a half-dozen S11Cs between me and the gf. Great for gifting to The Muggle, too.
Cheap but definitely not a “toy”. Similar to the LEDLenser type zoom? It’s not the usual aspheric, but more like a sliding TIR lens.
And the SD01 is a nice light, too. No end-cap on the battery tube, but one solid milled piece, so no leakage or O-rings to mess with there, either. Nice!