Red-light devices are all over social feeds and make enormous promises. From the many, ... In comparison, the Lifepro Lumicure has three LEDs in a 0.78-square-inch circle, ...

In this episode, we misstated that the irradiance, or power over an area, of red light devices is measured in megawatts per square centimeters. It is milliwatts, not megawatts. June 2025 ...

Intersections with a history of crashes and red-light running drivers are slated to have these systems. San Jose has mapped out four locations for red-light cameras and 33 locations for speed cameras.