How much does this cost to the nearest dollar?

Psiven LED Magnifying Lamp, Dimmable Magnifier Desk Lamp/Task Lamp with Clamp (3 Lighting Modes, 10W, 5 Diopter, 4.1'' Glass Lens) Highly Adjustable Swing Arm Craft, Workbench, Drafting, Work Light
3 Color Temperatures Work Cool WHITE LIGHT helps you stay focused and boost work efficiency.Reading Cozy DAYLIGHT helps you enjoy reading without eye strain.Relax Comfortable WARM LIGHT drives all your stress away. Stepless Dimmer Dimmer switch provides enhanced control over light intensity. Crystal Clear Optical Grade Glass Lens Ideal for those who suffer from eyestrain or low vision (macular degeneration), crystal clear 4.1 inches optical grade real glass magnifier enlarges 225% for ultimate clarity and distortion-free

Price is $40.00
Price: $39.99