Softech - Natural Ultra Bright Light LED Lamp with swiveling Head & Clamp Type-White (3 Lighting Modes, 5-Level Dimmer, Touch-Sensitive Control Panel, USB Charging Port, Mobile Device Charger) The LEDs produce an astounding 1600 lux of brightness. It is the best and brightest in the world. 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. Touch sensors are seamlessly integrated into the base. Touch sensors adjust brightness, 1600 lux - 500 lux, and color temperature, 6600k to 1800k. Experience huge power, and cost savings through high efficiency, ultra bright LEDs. LEDs use only 1 watt of power on low brightness and 11 watts at maximum brightness. The compact design with its ultra bright lighting is perfect for today's high functionality modern offices. The slim captive touch sensor base saves desk space.