This light comes in a pack of 4.  They're thin, but are somewhat large because of half of the case is for the solar panels.  I like the finish and the material.  They are supposed to be off during the day and turn on at night.  

A couple of the lights I received were defective.  They would turn on during the day and would be off at night time.  I thought it may have been a low battery, so I charged it for a day before trying again, but no change.  I was able to click the on/off button a few times and it corrected the behavior, but when night time came, the light never turned on!