As a signage professional, it is worth your time to know about an important feature of LED illumination. That is the “viewing angle”, and the meaning of that angle is sometimes misinterpreted. Here is a capsule explanation. The textbook definition of a viewing angle is “the peak luminous intensity measured at right angles to the surface of the LED chip”.1 It is twice the number of degrees from vertical at which luminous intensity drops to half of the peak value.

Why should you invest in signage instead of other media? Let’s take a look at the top ten fast answers to that question.

10. Signs produce foot traffic for your business.

9. Signs work for you 24/7 without asking for a raise (particularly electrical signs like channel letters)