Products

S-4 DN (DAY AND NIGHT)

S-4 DN (DAY AND NIGHT)

The S-4 Day and Night Cast-Iron LED Active Road Stud is a modern solution designed to enhance road safety. The S-4 DN Active Road Stud (ARS) in a cast-iron housing is an advanced active reflective device distinguished by its unique top-mounted white LED lighting system, which improves pedestrian visibility at night and in areas without street lighting. The top LEDs activate only after sunset and turn off at sunrise, while the side LEDs operate when triggered by a motion detector.  
  • 3-year warranty
  • Active
  • LED (12 + 6 LED diodes)
  • Operating time: 380 h
  • Diameter: 180 mm
  • Weight: 4.5 kg
  • Colors:

Product functions

High cast iron cover resistance against wear by abrasion and ploughs

High reflector resistance against wear by abrasion caused by tires

Detachable cover to replace electronic inserts with LED and battery

Cable installation for connecting the active road studs to powered cabinet

Ensuring driver visibility on the road for vertical signs, especially at night and during rainfall

Product advantages

The main advantages of the S–4 DN product are:

  • High LED light visibility up to 1000 meters
  • Snowplow-resistant and durable cast-iron construction, withstanding pressure above 250 kN
  • Low operating cost thanks to the replaceable LED module
  • Energy-efficient 12 V DC LED system designed to operate in a wide temperature range (–25°C to +60°C)
  • Option for single- or double-sided illumination
  • Various LED light colors: white, yellow, red, orange, red-white
  • Automatic activation upon motion detection via sensor
  • Easy installation using bituminous adhesive

Solutions

S–4 DN is recommended for marking particularly dangerous locations on national roads at night:

  • hazardous sections of city streets where accidents frequently occur
  • active pedestrian crossings
  • tunnels or bridges

 

Product type: Active road stud, snowplow-resistant

Number of LED diodes: 12 LEDs (top), 3 LEDs (front) + 3 LEDs (rear)

Replaceable insert: Yes

Insert material: High-impact transparent polycarbonate (PC)

Operating temperature range: –25 °C to +60 °C

Power supply: 12 V DC

Compression resistance: > 250 kN

Weight: 4.5 kg

 

Installation method

Tools: Core drill with a dedicated cutter (socket for the fixture), disk cutter (groove for the cable)
Installation: Bituminous adhesive
Adhesive consumption: up to 0.5 kg