Lumiy Draftsman 2750S Ultra Bright LED Desk Light Table Lamp - White Giant 52", three-jointed, aluminum boom arm gives exceptional reach and light control The LEDs produce an astounding 1600 lux of brightness. Experience huge power, and cost savings through high efficiency, ultra bright LEDs. Dual cool white and warm white LED enable a color rendering index of over 90 CRI produce sharp, crisp lighting. Lumiy produces near to perfect natural light, whereas sunlight is 100 CRI. Capacitive touch sensors and USB charging are seamlessly integrated into the LED task lamp. Touch sensors adjust brightness, 1600 lux - 500 lux, and color temperature, 6600k to 1800k.