1Our light therapy lamps provide light position light (primarily stimulates cone cells) and dark position light (primarily stimulates rod cells) to reduce pupil size, relax eyes, and perform more comfortable light treatments. 26 levels of dimming and 3 levels of temperature adjustment, suitable for treatment of seasonal emotional disorders. 3Simulate sunlight to eliminate the production of melatonin, make your brain clearer and keep alive. 4Free time control, intelligent timing, efficient and convenient. 5The therapy lamp is simple, exquisite and compact, easy to adjust brightness.