This Art Antique Concrete Stone Base Lighting Desk Lamps provides contemporary style with a neutral white color temperature of 4100K. With a lamp body material constructed from stone base and fabric shade, this desk lamp has an input voltage of 85-265V and a lamp efficiency of 65 lm/w. It comes with a 3-Year warranty and a lifespan of 50,000 hours. Perfect for lighting in a reading room, office, café, bedroom, hotel, or restaurant, this desk lamp also offers professional lighting services.