Operates much cooler at 130°, while halogen lamps operate at around 1000°. Uses much less electricity - 1/6 the electricity than a halogen lamp. Bulbs last up to 10 times longer - Halogen lamp will usually last 1,000 hours while the Ultralux bulb lasts up to 10,000 hours. Uses a 91 CRI, 5500° Kelvin Color Temperature, full spectrum bulb. Dimmable electronic ballast system produces flicker-free lighting using a preventive frequency interference dimmer switch. Our UltraLux Serenity Table Lamp will make any task easier on the eyes with its bright, cool light. This high definition, full spectrum light simulates the optical brilliance of outdoor light at noontime. This desk lamp generates clearer vision and higher perception with less glare and eye fatigue.Operates much cooler at 130 degrees, while halogen lamps operate at around 1000 degrees. . . Uses a 91 CRI, 5500 degrees Kelvin Color Temperature, full spectrum bulb. . 2-year warranty. Read about the benefits of full spectrum lighting.