Patented 6 color blend produces the highest CRI of any full spectrum lamp at 96 CRI. Patented dimmable flex arm lamp for ideal comfort. Powerful, energy-saving 70w lamp produces 4,300 lumens of brilliant full spectrum light equal to 300 watt halogen bulb. Can be used for both light therapy and as high quality reading lamps producing 10,000 lux at 18" and 5,000 lux at 28". High quality gloss finish metal construction. Bulbs last up to 10,000 hours. [?] Unique 6 phosphor blend allows you to see crisp clear colors as they are supposed to be seen. Ideal size for reading, sewing, or crafts. Lamp stands 54" tall. Lamp head is 12" long x 6.5" wide. Base is 12 x 8.25 x 3". Comes with a lifetime warranty on the lamp and one year on the bulb. No extra charges!