I use this one, its pretty good… I wouldn’t recommend relying on the integrated CFL light as your only light source, but it is a good supplement when used with a high powered LED lamp. The reason I like this one is because its base/arm design is better than some others I have seen in this price range, easy to adjust and holds well in any position (I had to return the first one I bought from amazon because it was poorly designed). It comes with 3 and 5 diopter lenses.
Of course, you can get better magnification from loupes… but I haven’t seen any decent loupes for $100
Which is quite small - 3 dioptres is 1.75 fold magnification, 5 dioptres is 2.25 fold. My first loup lamp had 8 dioptres (3 fold magnification) and an LED light source which unfortunately died within a few months.
And seriously: we want to do professional work. This requires good magnification and good light sources. We do not want to win the contest of being able to treat fine hair with simple visual equipment.
Moreover we are investing thousands of EURos or Dollars in high quality epilators and possibly a luxury treatment table and do even consider saving money on the visual equipment? Ain’t that inconsequent?