The Day-light Classic Plus Is A Clinical Bright Light Therapy Lamp That Meets All Expert Requirements For Therapeutic Use * Bright Light Therapy Is The 1st Recommended Line Of Treatment For The Winter Blues * 10 000 Lux At 12-14 * 99.3% Uv Blocked * Color Temp: 4000k / Cri: 85 * Meet All Expert Guidelines For Clinical Bright Light Therapy * Slightly Larger Enclosure - Increased Field Of Illumination Than The #19079 * Improved Ventilation - Better Heat Dissipation * Four Easy-access Screws Vs 9 To Remove Lens For Quick Bulb Changes * Power Button On The Side - Clean Unobstructed Profile * Easier To Adjust Angle/height & Features Four Height Settings Vs Three - Improved Flexibility For Users * Attached Single Pedestal Stand Vs Two Indindependent Legs - Better Stability & Greater Ease-of-use * Use Same Key Components: Ballast Lens Material & Bulbs * Two Modes - Therapy (3 Bulbs) Or Task (2 Bulbs) * 5 Year Warranty