San Angelo, Texas-based Principal LED, a manufacturer of LED-based sign lighting products specifically made for the sign industry, announces a nationwide “Summer of Cash” photo contest.

The company says it is looking for illuminated signs using Principal LED products. The purpose of the contest is to show off the creativity of its customers and sign designers. It is looking for high quality, clear photos that creatively show off a well-lit sign. The top five finalists will be posted to Principal LED's Facebook page for voting.

First prize is $500, and the top three winners all win cash and will have their photos posted on the company's website.