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I was out for an over nighter this weekend and one of my friends gave me a LightUp mini light. It is tiny, weight next to nothing and kicks out a decent amount of light. It is an excellent little device. Of course, it won't replace my head torch but will complement it.
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Good timing; my keyring light needs replaced, I'll have a look at these.
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I've since found their website --> http://www.lightupu.com/
One lightupu for £4 or five of these for £2.99
http://www.ebay.co.uk/itm/5-10-20-BR...cf8Ck23SaTJMVg been using these for use, very good they are too.
Ten here http://www.ebay.co.uk/itm/Mini-Brigh....c100005.m1851
Looks like the latter is basically a button cell with an LED. You can make them easily by just holding the legs of the LED onto the front and back of the button cell.Quote:
Originally Posted by rik_uk3
10 LEDs for 78p: https://www.banggood.com/10pcs-5mm-3...e-p-73162.html
5 button cells for £1.57: https://www.banggood.com/Wholesale-5...l-p-68613.html
Fun to play with if you're that way inclined. :)
Thats basically what they are, but why mess about, ten 'ready made' work out at 25p each, they also come with an on/off switch. I did a group buy on these a few years ago, had no complaints from the users. I ordered 250 and from that had two that were duff and didn't work...no big deal. I clipped them onto keyring's, zip pulls, rucksacks et al...very handy.
They (your link) are indeed cheaper - especially if you start adding the cost of the switch and the ring/chain. Very very cheap. The home-made option just means you can fiddle about with options such as more LEDs or a bigger battery/more batteries. But then it becomes less of a key chain item. Nice to have options though. :)
Cheers for the link gents.
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Bernie, I'm a radio ham and love messing about with electronics sometimes, but not little LED torches LOL