Powerslife Dimmable Eye Care LED Desk Lamp Intuitive touch/sliding control with 4 brightness levels. Minimalistic design with 90o to 270o fully adjustable lamp base to optimize your lighting source. Sides reflective LED lighting source creates uniform unidirectional and vision friendly lighting No flickering, no dark area, and no ghosting protects your vision and reduces eye fatigue Package contents: 1 x LED Lamp; 1 x Adapter; 1 x Quick Installation Guide. 18 months Powerslife Worry-free Warranty