Coming in three different optional strengths the diamond range of sad therapy light boxes has proven to be our best selling range over the past three years due to a combination of quick treatment time and efficiency at a competitive cost these versatile lightboxes have a sleek ergonomic design to bring the light to you in the most efficient way possible the lightboxes come complete with a base allowing it to tilt forward or backward 6 12 degrees as research has shown that angled li