Safety Star - Your Safety Starts Here 3D Safety Digital Stoplight with real working 5" RED/YELLOW/GREEN lights!! Each light has a shade over it so it looks like a real stoplight. Improve Days Without Incident For Workplace Safety since pioneering the commercial safety stoplight in 1992, Safety Star has been at the forefront of promoting products for safety awareness and safety incentive programs. Our wall mounted safety stoplight is a large 24” x 36” stoplight coupled with a red / green digital display for tracking days since last incident, reinforcing safety in the workplace.