Home Improvement Secondsun Light Review 2021: Light Therapy Lamp for Sad With 10000 Lux Brightness? April 17, 2021June 15, 2021 RaiComment on Secondsun Light Review 2021: Light Therapy Lamp for Sad With 10000 Lux Brightness? A light box is a translucent surface illuminated from behind, used for situations where a shape laid upon the surface …