I think a cordless, rechargeable, energy-efficient LED reading lamp is a great idea for areas where a 110 volt receptacle isn't available. This one functions well as a task or reading lamp. I purchase four, one I use as a desk lamp; two on either end of a sofa for reading lamps, and one by my bed side for reading. This eliminates extension cords across walking areas.
I have two problem issues with these lamps.  
The mast is comprised of three segments threaded to the base, flexible neck, and each other.  The lamp may be assembled with only one section, as a table lamp, and is structurally stable as such. When the other two sections are used to extend the mast for use as a floor lamp, it becomes a bit flimsy with some loss of straightness. It's a bit delicate. "Flexlamp" may apply to more than adaptability.
The second issue is the battery/charging system. The charging time is long and the lighting time between charges is short, relatively. 
The connections are less