The clip on part works great. It’s the lamp part that unfortunately leaves a lot to be desired. The approx. foot long light is so incredibly narrow, it has to be directly over ( I do mean right on) top of what you’re looking at in order to see anything. I bought this so I could clip it onto a bookshelf next to my reading chair  had planned to bend its arm to the side just above whatever it is I’m reading. it’s not working out. The narrow head doesn’t turn enough on its flexible arm. The light itself isn’t bright enough either (yes, I have it  its brightest setting). I do wonder why anyone would want to alter the brightness. What benefit is there to dimming this light (That’s a rhetorical question.) Finally, I’m reminded of the comic’s line, “Other than that, Mrs. (Abraham) Lincoln, did you enjoy the play” I really wanted to love this sleek, little lamp.