Stupid thing never went dark when I thought it was an upgrade but it literally blinds me trying to get it to work, only once wasted money.
Pros
VIEWING AREA: 5.97 square inches (3.62 x 1.65 inches) viewing area. High definition optical clarity with True Color technology for a more natural viewing experience. Two optical arc sensors protect against the dangers of arcing. An optical clarity rating of 1/1/1/2 for a crisp, clear, and uniform viewing area. UV/IR coating to reduce scratches and lens fading