Well, sure, they may not use much power, but:
THEY DO NOT LAST, and more than half of those purchased are dead after 1yr!
So, avoid these.
I found a new type which is much brighter at the same wattage, and so far are holding up. But, the jury is out on the new LED nightlights too, since I have only had the new brand 6-months. Time will tell.
There is a *promise* of money-saving with LED lights, for sure. But, ONLY if they last!
I like using them throughout my home (the "night lights") to light hallways and rooms slightly so that I do not need to turn on overhead illumination if just "passing through" in the evening. Also, they make great "theater lights" in the TV room (highly recommended for that - IF you can find ones that last).
Enough said... that is my quick review of these FEIT Electric Brand LED nightlights.