So you have decided that your grandmother needs a flashlight. Does she too? Or is she just pleasing you?
Take a step back.
- Why does your avó need a flashlight.
The powergrid is weak?
She needs to be in a place (shed, attic) without electricity?
She walks her dog in the dark?
- How often does she need a flashlight.
Once, but it can happen again.
Sometimes.
Every day.
- Where does she keep the flashlight.
It has a fixed place.
Always in a drawer.
In her apron.
- Why failed her cheap lights before?
Just like that.
Falling down.
Batteries died.
I have been there before. Don’t think for yourself. Try thinking like her.
What UI. Think KISS.
Size. Nightstick or small(er) light?
Is LiIon a good choice. Is 18650 not too heavy.
Is a USB port not terrible clumsy for old eyes and old hands?.
How about a docking station. Always ready. Recharging after every usage.
Just my 2c.