Valkee 2 Bright Light Headset SAD Light Treatment. Valkee is a revolutionary treatment which uses high intensity light therapy to alleviate Seasonal Affective Disorder (SAD) within just 4 weeks. It looks just like an mp3 player with earbuds which direct the light down your ear canal and directly to the photoreceptors in your brain. The treatment Valkee 2 provides is far more effective than traditional SAD light boxes which are designed for the sufferer to sit directly in front of for up to an hour every day. With Valkee 2 treatment time is far quicker at just 8 minutes each day. Buy this Valkee 2 Bright Light Headset SAD Light Treatment Now £185.00.