Manhasset MH-1000-1 Stand Lamp

 Sturdy but not adjustable
This lamp is made of sturdy black metal, and it clips onto the top of the stand securely. (Unless you're using a Wenger plastic music stand, or a stand with a rolled top edge, in which case this light won't fit on the stand at all.)

The problem is that the light is not adjustable and the bulb throws light only on the top three inches of the music! That's why I have decided to use the clip-on light in the future. Not sure if it's available from Amazon but it is adjustable, lights the whole page, and will clip onto any brand of stand.