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LED-Old Town Luminaire Square with LED Insert Metis

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Product Description and Application

Due to their nostalgic design, BöSha old town luminaires are perfect for the efficient illumination of historical old town areas. By combining the latest LED and reflector technology as well as additional control functions they provide an economic efficiency previously not attained.

This luminaire primarily creates lighting accents in historical old towns and alleys, fashions squares and parks and impresses by pleasant, glare-free light. Diverse roof variants allow for creative scope.

The LED insert "Metis" displays a pleasant, wide-beam lighting character. By means of segmental assembly partial areas, where less light is wanted (e. g. near house walls), can be shaded.

Having an optimised luminous intensity distribution, the quantity of luminaires can be reduced due to larger luminaire spacing. The luminaires are equipped with highly efficient multi-chip-on-board LED technology - supplying nominally 120 lm/W at 5,000 K. A service life of more than 100,000 hours is ensured.


Recommended pole height: 3 - 5 metres



Typical application areas
(lighting classes)


Light distribution curve
Old Town Luminaire Square


M2   P2   LVK Altstadtleuchte eckig Metis
M3   P3  
M4   P4 x
M5   P5 x
M6   P6 x


Product Description and Application Model and Performance Variants


Wattage / output* 22 Watt 1,901 lumen
30 Watt 2,592 lumen
*effective 102 lm/Watt at 5,000 K
Colour temperature 3,000 K / 4,000 K / 5,000 K
Light distribution Rotationally symmetric / asymmetrical
Mounting Top-mounting
Spigot size 76 mm, optionally 60 mm (by means of reducing adapter)


Design - Technical Specifications
Dimensions l x w x h [mm] Weight [kg] Wind load [m²]
530 x 530 x 650 6.3 0.18


Design, material and mounting

  • Enclosure of high-quality, non-corroding aluminium
  • High-quality powder coating acc. DB 703 (graphite), on request all RAL colours
  • Direct mounting on the pole without additional work, connecting cable pre-assembled (optionally)
  • Acrylic panes of impact, weather and uv-resistant PMMA
  • External screw connections of high-grade steel
  • Use of heat conducting paste (alternatively heat conducting foil)
  • Degree of enclosure protection: IP 54


Lighting technology

  • Multi-chip-on-board LED (MCOB)
  • Highly efficient reflector technology (MIRO ultra-pure aluminium)
  • MCOB-LED approved acc. to IESNA LM 80-08
  • Service life LED: 50,000 h – L90, B10 // 100,000 h – L70, B10
  • Needs-based light distribution


Electrical design

  • Voltage 195-265 V / 50 Hz
  • LED module and electronic ballast separately removable and plug-connected
  • Electronic constant current LED ballast, efficiency 93 %
  • Power supply interference-suppressed acc. DIN EN 61000-6-3/-4, EN 55011,
    EN 55022 CI. B, PFC corrected
  • Protection class II acc. to VDE 0140 (DIN EN 61140)
  • Power supply degree of enclosure protection IP 65
  • Standard connection by means of Wieland plugs series ST18
  • Overvoltage protection 4 kV (optionally 10 kV, external module)
  • Wired ready for operation acc. to EN 60598
  • Night-time dimming (power reduction down to 50 % via 2nd phase)
  • Optionally, equipped with a telemanagement system


Subject to technical modifications!