Sunshine in the smallest space! Perfect for apartments and offices! Spend a lot of time indoors? A patented Verilux bulb activates natural mood enhancers without exposing you to harmful UV rays or EMFs. Compact unit delivers therapy-strength Natural Spectrum light using exclusive Verilux Flicker-Elimination Technology. At just 3.5 lbs and 12 tall, this ultra-portable unit makes it easy to get the nourishing light you need to brighten your mood, well-being, and thinking. Patented super-bright 36 W 10,000 hour bulb with Tricolite Phosphor Technolgy. Space-saving design delivers full strength 4,500 LUX of bright white light, but weighs just 3.5 lbs and fits easily on any tabletop or desktop. Electronic Ballast and Flicker Elimination Technology assure no-buzz operation and instant-on flicker-free illumination.