The lighting consists of many small LEDs around the lens.
If you hold the magnifying glass at least 7cm away from the object being viewed, this is also well illuminated. However, if you rangeht closer, created darkness in the center of the lens, I sometimes feel as disturbing.
On top of the very cold, bluish light of the installed LEDs.
My tip: A yellow permanent marker (marker pen), with which one makes yellow swab on the LEDs, works wonders here.
The ingrained in the large lens smaller lens with higher magnification I feel also as annoying ..
Despite these points, I think the Bresser LED Magnifier for a nice, solid, quality and functional Lupe!