Hand-crank LED lantern $11


#1

[Read the post]


#2

Neat lamp, but if it’s like every other cranked phone charger light I’ve seen, you’ll get a millisecond of talk time for every four hours you crank it… along with hand cramps.


#3

Anybody got personal experience with the crank-vs-light time?

Cellphone charging uninterests me.


#4

The concertina shape would lend itself to being foot pump charged, at least a bit easier than the ergo-tastrophy which is hand crank almost anything beyond the time/effort of a pencil sharpener


#5

I’ve never had a problem with it.


#6

Izzat David Thewlis?


#7

I bought two hand-crank LED flashlights (torches) on a boingboing recommendation. ‘These are great and cheap!’ Cheap yes, great no: they are both non-functional after less than a year. Negative 4 stars. I think the gradual linkbaitization is ruining this site. Heck it isn’t even gradual, every other post is a amazon spiffback. Combine that with the ghastly redesign (really? just 18 posts in a page? lemme guess: advertising) and I’m spending more time away from bb. Might be time to switch home pages. And so it goes…

avoid at all cost


#8

#9

http://www.instructables.com/id/Hand-Cranked-Flashlight-Mod/ ?


#10

Okay, how do you enter a promo code on amazon?

(edit: nevermind it is the very very very last step before you place the order…weird that it is AFTER payment info. can’t believe i’ve never used an amazon promo code before…)


#11

D’oh! Wish I had seen that before I threw out several several-year-old hand-cranks. Waaaaah!


#12

thx! mb my son and I will mod the now-useless torches. The joule-thief part looks tricksy, so mb we’ll start with the super capacitor (looks like about $2.50 or so? that sounds do-able)


#13

Amazon robots were unintentionally funny today:


#14

I don’t think it applies here, but I was surprised to learn that many of the cheap lever-operated ones are fakes. In those the lever doesn’t actually do anything except forcing the user to be economical with the hard-wired non-rechargeable battery.


#15

How many cranks in an iPhone?


#16

never had that problem, 1 s talk time equals 1 s crank time here :ghost:


#17

Learn from… ?


#18

I have a russian squeezelight that has no battery, just a heavy flywheel. It’s 20 years old and works perfectly.

When the light bulb burned out, I had to buy 30 of them from Russian army surplus, because regular bulbs can’t take the wild AC the windings throw out. But 30 mildewed soviet-era bulbs were cheap on eBay and a little chlorine bleach killed the stuff growing on them so that’s all OK.

It has a bakelite housing and bearings made of oiled raw wool. Super low tech and ultra reliable!


#19

I uh, whoah. wow.

Uh, does your spouse have an insurance policy on you? I need to talk to her. TOTALLY UNRELATED SUBJECT.


#20

This orange thing looks like the housing was made from the exact same molds as my ancient black one. I don’t know anything about the vendor website, though.

Note, some people don’t like these because the geared lever that drives the flywheel is noisy. I figure I already gave away my position by shining a light, so I don’t really care, but I do try not to get too terribly close to tents full of sleeping people when I’m using mine.