Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not a Shake Light

I purchased several of these lights (15 of them) to use as a teaching tool in a university undergraduate lab. I received them yesterday, upon inspection of the flashlight I found the following: The inductive coil IS NOT connected to anything, the slug which slides back and forth is not a magnet, the rectifier (diodes) which would be necessary to charge the light (and are pictured on the packaging) are not populated on the board. The lights work solely on two small batteries, when those are done, you're done. Shake all you want.