It can be adjusted 5 brightness levels (10%, 25%, 50%, 75%, 100%) by short press the brightness button, long press the brightness button to switch the brightness (10%-100%). You can customise the brightness to suit your needs.
The Book Light Rechargeable, Reading Light Lamp Clip on Books product would be ideal for people who work in well-lit environments but still prefer a dedicated reading light to reduce eye strain.
