If your old incandescent Ryobi flashlight bulb is dead, it's actually possible in most cases to swap it out for an LED. Here's how to do it.

Even if your electricity is clean, a bad installation could yield the same effects as dirty power. Old, dirty sockets won't ...

Instead, he added a new circuit to supply constant brightness until the voltage drops below 2.7 volts. We love to see hardware resurrected, even if it is just a cheap LED flashlight.