[CHALLENGE] A better solution for bike lights?

This is something that has bothered me for awhile - it’s important to have bike lights, but the most common variety of bike lights burn out very quickly.

I’d be interested in finding a way to increase the life of these cheap bike lights or using the pieces for something else after the batteries have died. I don’t really have a plan or an idea, just throwing this out there, so comments are very welcome :slight_smile: