Pattern Name:4-Black Floor Lamp Baltoro sunlight floor lamp features a natural spectrum light that is clearer, brighter, and easier on the eyes. Bring natural sunlight to your desk. Colors appear more vivid and true to life. Black and white contrast is heightened for easier reading. The soft and pure white light is easy on the eyes as it spreads to clearly illuminate your personal space. The flexible goose neck is fully adjustable to any angle so you see more comfortably for reading, working, and all close up tasks and hobbies. Included 27-watt bulb, with a CRI (color rendering index) of 80-85, gives as much light as an ordinary 150-watt bulb, but uses far less energy. The bulb can last up to 10000 hours. Benefits of natural spectrum lighting 1. Increases contrast in reading. 2. Increase release of seratonin a hormone linked to an improved feeling of well-being. 3. Increases vitamin d production in skin, which helps the body efficiently use calcium. 4. Render color much more accurately. 5. Reduce levels of melatonin, a harmone that promotes fatigue. About the bulb 1. Color temperature 6500 kelvin. 2. High lumen output. ‘your light is as good as number of lumens it provides’. 3. Long lamp life of 10,000 hours. 4. Energy usage of 27 watts, light output of 150 watts. 5. 120 volt AC 50/60 hz. Rocker on/off switch.