Rechargeable LED lamp by Fafa in c/askelectronics@discuss.tchncs.de
[-] Fafa@lemmy.world 2 points 3 weeks ago

I already tried to calculate the right resistance for a 5 w Led, but that's beyond me. Especially when I want to recharge the batteries.

I looked into Torch replacement bulbs. They seem to be simple enough...

Rechargeable LED lamp by Fafa in c/askelectronics@discuss.tchncs.de
[-] Fafa@lemmy.world 2 points 3 weeks ago

Thanks! That might be good. I wonder if the Diode is bright enough, but I guess I have to test that.

Rechargeable LED lamp by Fafa in c/askelectronics@discuss.tchncs.de
[-] Fafa@lemmy.world 2 points 3 weeks ago

True. Lots of them are watertight metal casing though. Thats why i was kinda hesitant to pick one.

15
Rechargeable LED lamp (lemmy.world)
submitted 3 weeks ago by Fafa@lemmy.world to c/askelectronics@discuss.tchncs.de
6 comments fedilink

I'd like to build a small light that i can use to cast a shadow to a wall.

It needs a single led that's really small and bright and that can be recharged. Also I want to put it in a special casing.

However I don't really know how to build one myself. So I had the I bright idea to take apart a flashlight that is rechargeable, but I'm not sure which one can be dismantled.

Do you have any idea what flashlight I could use or what parts I would need?

Wo kauft ihr euer *gutes* Olivenöl? by Fafa in c/fragfeddit@feddit.org
[-] Fafa@lemmy.world 3 points 1 month ago

Habs mir letztens noch abfotografiert.

Fafa

joined 2 years ago