Active road stud with 2 LED lights and photovoltaic panel, mounted in a cast iron body, which is plough-resistant, long-lasting with removable retroreflective element. Installed on roads with poor visibility and heavy traffic.

  • Active
  • LED (1+1) & Panel PV
  • Reflection: PRP1>250mcd/lux
  • Work time: 710 h
  • Diametr: 180 mm
  • Weight: 3.2 kg
  • Technical Approval Nr AT/2016-02-3306
  • Colors:

Product functions

High cast iron cover resistance against wear by abrasion and ploughs

High reflector resistance against wear by abrasion caused by tires

Self cleaning system activated during rainfall.

Gentle ramp for the wheels of vehicles as well as road maintenance machines (for instance ploughs) which guarantees trouble-free driving

“Alert” system acting as acoustic warning when crossing the road marking line

System which enables programming a length of LED light

Automatic LED Activation System (ALAS)

Energy efficiency - 710 hours of working time

Photovoltaic system that allows fully charge the battery within 45 minutes

Product advantages

The main advantages of S-3 LED are:

  • High visibility of the reflector up to 1000 m
  • Low maintenance costs of labelling dangerous spots on roads
  • Energy-saving system capable of operating LED lights up to 700 hours on a single battery charge
  • Possibility of flexible programming of the wavelength and the power of LED light
  • Automatic LED Activation System (ALAS) which automatically turns on (sunset) and turns off (sunrise) the LED lights
  • Battery fully charged within 45 minutes


S-3 LED is recommended for marking particularly dangerous places on national roads and motorways at night-time:

  • spots lacking street lighting that are subject to heavy traffic (over 10 000 cars a day)
  • low speed bumps
  • active pedestrian crossing
  • tunnels (S – 3 Kabel with cable installation)



Product name  S-3 LED
Type of product Plough-resistant. High mechanical impact resistance.
Technical specification – Reflector
Type of reflector P3A (R1- R3), reflective film 3M I or II generation
Conformance with standard PN EN 1463-1:2009
Certificate ITB-259/W
Number of LEDs 1+1
Reflected light luminance factor PRP1>250mcd/lux
LED light visibility min. 100 m
Horizontal angle of beam max 60⁰

(optionally  diodes with an angle of 15⁰, 30⁰ and 40⁰)

Photovoltaic Panel (PV) polycrystalline
PV lifespan Up to 9 000 cycles / 25 years
Light conformance with standard Technical Approval No. AT/2016-02-3306
SAAL system activation Automatic by 30 lux daylight
Type of battery Akku  Eneloop  1,2 V  2000 mAh  1 or 2 pcs
Charging time 45 min
Operation time 710 h with 1 piece
Temperature resistance From –35⁰C up to + 135ºC
Tightness IP 68
Insert material High-impact colourless  PC
Compression resistance > 180 kN
Color of double sided reflector
  • white-white
  • white-red
  • yellow-yellow
  • green-green
  • blue-blue
  • other colours on request without certificate
Color of one sided reflector
  • white, red
  • yellow
  • green
  • blue
  • other colours on request without certificate
Technical specification – Cast iron cover
Shape Flat mushroom-shaped
Gross weight of iron cover including reflective insert  

3,2 kg

Height (above the road) 14 mm
Depth (under the road) 47 mm
Diameter (the part above the road) 180 mm
Diameter (the part under the road) 110 – 120 mm (cone)
Compression resistance >250 kN
Cast iron cover lifespan 10 years
Installation guidelines

Milling machine with a special shaped cutter mounted on a trailer or small portable water-cooled drilling equipment

Higher slot diameter 182  (max.188 mm)
Lower slot diameter 116  (max.122 mm)
Higher slot depth 10 mm   (for diameter of 180mm)
Lower slot depth  52 mm
Installation in asphalt surface Bitumen adhesive in temp.160 – 180⁰C
Adhesive consumption


Up to 0,48 kg
Installation in concrete road surface (dry) Epoxy or polyurethane adhesive (cold).

National Certificate of Constancy of Performance for S-3 LED (Download)

Installation instruction for S-3 LED

Document name File
Technical specification  Tech Spec for S-3 LED_31.03.17
Pobierz dokumentację