I'd suggest using an LED desk lamp or an LED floor lamp, because you don't need any drilling or complicated installation. They're easy to adjust the light angle too, so you usually don't have to worry about the shadow as you do with swing lamps. Just make sure they're bright enough.
As for the color temperature, like someone else mentioned in this thread, theoretically a more blueish shade would keep you more alert and vice versa. However we have very different preferences and perceptions of colors (remember "the dress"?), so something that looks yellowish to one person and makes them feel sleepy may not look that yellowish, and thus doesn't have the same effect to someone else. Also some people don't seem to be affected by light color changes at all. So I guess you only need to care if you're really sensitive to light color. Best bet is to find one that allows you to adjust the color according to your mood/preference/the nature of the job and see how you operate in that light.
For floor lamp, check the Brightech Lightview Pro Magnifier Lamp. Bright, dimmable, have magnifier, multiple color tempt.
For table lamp, I recommend the BenQ eReading Lamp. Bright, dimmable, multiple color temp. The base is huge so if your desk is small you might want to use the clamp instead.
Reviews of the Lightview Pro on Amazon:
https://www.amazon.com/Brightech-Light-View-Magnifying-Lamp/dp/B00UW2IRJ2/Reviews of the BenQ:
https://www.hookedtobooks.com/best-desk-lamps/