I ordered the Teckin DL01 as a clip-on for my bed two weeks ago. It clips on easily and wide enough for my bed. The light is bright, focused and easy to turn on. I haven’t figured out a quick way to turn off yet and it still takes trial and error. I recommend the light.
I bought one from Amazon 3 years ago and it is nice and bright for reading the newspaper. I like that it is inconspicuous.
We found the lamp's clamp did not fit onto the bedside table that it was to be used with. We also found that you must cycle through 3 increasingly brighter settings before shutting off. This is inconvenient, especially for one's sleeping partner. The lamp initially did not work properly, though it eventually did - not reassuring however.
Be sure you know ahead of time that this is the lamp you want because the company's return policy is NOT user-friendly.