There are lots of 1AA LED lights out there, I have a couple which are similar to this one (though this design looks nicer than the ones I have)[1] 1: https://w

There are lots of 1AA LED lights out there, I have a couple which are similar to this one (though this design looks nicer than the ones I have)[1] 1: https://www.tindie.com/products/sdp8483/multi-led-joule-thief-v2/ https://www.tindie.com/products/sdp8483/multi-led-joule-thie...