Patented 6 color blend produces the highest CRI of any full spectrum lamp at 96 CRI. Flicker-free electronic ballast system that is fully dimmable from 100% to 20%. Patented dimmable flex arm lamp for ideal comfort. Can be used for both light therapy and as a high quality task lamp producing 10,000 lux at 13" and 5,000 lux at 23". Produces 4,300 lumens, equal to a 300 watt halogen. Perfect size for desk use. 17" tall, lamp head is 12" long x 6.5" wide, base is 8.5 x 7 x 1.5". Comes with a lifetime warranty on the lamp and one year on the bulb.