I want a light.
Functionality is what attracted me to biohacking and recently I got to thinking how handy a functional light could be. I don't mean something like the Northstar but rather a more simplified, stripped down variation utilizing a single high efficiency, brighter LED diode.
Magnetic field activation would be fine, unless there's a smaller, lighter idea that would work and wouldn't require anything besides my body or whatever is implanted inside of me. Really simple: battery, activator, LED.
Something that could allow me to easily navigate in a dark room or maybe spelunking. Anything along those lines.
Is there anything like this out there or is the selection entirely cosmetic? What would it take to custom order something like this and who might I approach? The electronics aspect is simple enough, but I have no way of encapsulating such a device for implantation.