3M Polarizing LED Task Light Desk Lamp, Touch Switch, Single Brightness Setting, Easy Adjust, UL Approved, Black Polarizing light filter technology reduces glare on surfaces which can help improve reading efficiency. Longer life (lasts up to 40,000 hours) and energy efficient LED bulb is anti-flicker and does not produce ultraviolet light. Touch type on-off switch with single brightness level recommended for reading and using the computer. Highly adjustable with a slim and stable anti-skid base allows you to position light where you need it. Modern and stylish design in black to fit your office or home.