Smart lights that you hang around your neck can better enlighten books and book pages. With the adjustable neck you can set the optimum angle. Perfect for reading in the dark or fixing order when you need your hands free at home. 4 LED lights, two on each side, can be turned on or off individually. The feature is great if you want to be able to vary the intensity of the light, as most other book lights only have a constant glow. Since the stand is flexible, you can bend it and adjust for example a table. niobium Power is powered by 2 AAA batteries, not included. great for travel flexible Battery efficient LED light for long life Brightness adjustable Batteries: 2x AAA (not included) Dimensions:4-speed flashing mode - one spotlight - two lights on together - turn off one with packaging 91g, 58g without packaging, single with packaging size: 31 * 14 * 3cm Product: length 26cm Battery compartment 3cm Tube 1.2cm Light size 1.5 * 2cm