I used a desk magnifier with a circular fluorescent lamp for many years until it started to disintegrate possibly as a result of the UV degradation of the plastics. I then switched to one of these and have been very happy,
https://www.amazon.co.uk/Owl-Magnifi...gateway&sr=8-9
I like the ability to put it up high and use it as a light if I dont need the magnifier. Dont go too cheap as they tend to be too flimsy with low levels of light.
Chris