A novel active bright warning product for road traffic infrastructure is called Solar Studs. Solar Studs employs LEDs to emit light or LEDs in combination with reflectors to emit light. It uses solar panels as charging components, batteries or capacitors as energy storage components, and LEDs to emit light. The majority of it is located at the edge of the road and at the line separating the fast and slow lanes. Usually, it is used in conjunction with the marking.