Yeah, doesn't look like much, does it? This is the test button on the package of a neon look LED sign that I got. The thing that's so neat about it is that is what's not there, the sign is powered by a USB cord, unlike the decorative signs I've gotten in the past that are powered by batteries. This becomes important, because those would come with batteries installed, and a switch like this that connected to two bins on the sign. This sign however has no batteries, so how does it work?

The give away is the thickness, I haven't tried opening it yet, but I'm willing to bet that there's a button battery in there. Kinda amazing how cheap this stuff has become, the sign is $9.99, and for testing you get a free button battery, cheap switch, and a USB female socket, how are they even doing that?

#sign #electronics #China