Traffic Light Signal Diagram - Red, Yellow, Green Lights Explained #1234804 (License: Personal Use)

This digital illustration depicts a standard vertical traffic light with all three circular lamps (red, amber/yellow, and green) lit at once, used primarily for educational or schematic representation. Each light emits a soft glow with subtle gradients to simulate illumination against a neutral gray housing. The image is stylized for clarity, not realism, making it ideal for instructional materials.

Commonly used on driver education websites, traffic safety guides, transportation authority pages, and school resources to explain signal meanings; matches user intent for learning traffic rules or designing UI icons.