A variety of different lights that you can showcase your crystals on like Clear Quartz, Selenite, Fluorite.  These can be used as lights to create the perfect ambience in your space.  
 
The wooden lights are operated via a USB cable and come in either a white light or a coloured light that changes colour
The bigger lights all come with a USB cable and can also be used with batteries.  These are all coloured lights that change