Optio Midi

Available from 40W-100W

The Optio Midi has been specifically designed to provide highly efficient illumination for multiple road lighting applications covering residential, traffic route, conflict area and floodlighting applications. All centred around an easy access gear compartment and utilising our patented ‘MountSet’ universal mounting feature. A toughened flat glass cover on the underside, combined with a vast range of LED colour temperatures, optical distributions and light shields ensures that any lighting scheme can be optimised whilst also providing a true zero upward light luminaire. Illumination for zebra crossings can also be achieved by using our zebra optics.

View the Optio Midi Zebra

Powerset Logo

PowerSet feature available; field adjustable, integral power output selection device.

Darksky Logo

International Dark-Sky Association approved. Compliant when using a colour temperature of 3000K or below at zero degree tilt.


Mounting Options

Post Top Mounting Demonstration

Side Entry Mounting Demonstration


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TRT Lighting supports, promotes and uses Lighting Reality for all road lighting calculations.

Photometric Database

Our complete photometric database is available for use within this industry standard lighting design package which is available for download from www.lightingreality.com



  • LED colour temperature PC-Amber*, 2200K, 2700K, 3000K, 4000K (or 5700K Zebra only)
  • Colour rendering index > 70 (*>55)
  • Projected L90 after 100,000 hours
  • Power factor >0.95 at full load
  • Polyester powder coat finish in light grey, dark grey, black or a bespoke colour
  • High quality high pressure die cast LM6 aluminium components
  • Stainless steel fixing screws with stainless steel inserts in pivot
  • Toughened flat safety glass cover
  • In-built ventilation (breather) plug for pressure equalisation
  • Replaceable gear tray
  • CLO available
  • PowerSet feature – Field adjustable, integral power output selection device (optional)
  • Controls – NEMA 3, 7, Miniature Photocell and Zhaga Book 18 (SR) socket
  • Part Night Dimming (PND) with manual dimming override option
  • DALI compatible for use with CMS
  • Optional surge protection 10kV/10kA
  • MountSet (patent granted) – Universal mounting system to interface with multiple column/bracket diameters or length
  • Luminaire levelling indicator
  • UMSUG codes available for full product range

Range Overview

Optio Midi
System Power 40-100W
Road Optics
Area Optics
LED CCT PC-Amber*, 2200K, 2700K, 3000K or 4000K
Lumen Output Up to 15,915lm
LED CRI >70 (*>55)

Shield Options

Universal Front/Rear 83BAF71375
Side 83BAF71374

Electrical Characteristics

Optio Midi & Optio Midi Zebra
System Power 40-100W
LED CCT PC-Amber*, 2200K, 2700K, 3000K, 4000K (or 5700K Zebra only)
LED CRI >70 (*>55)
Lumen Output Up to 15,915m
Lumen Maintenance Projected L90 after 100,000 hours
Drive Current 260-695mA
Driver Output Constant current output with AM dimming
Power Factor
(Full Load/Half Load)
Operational Voltage 220-240VAC rms
Operating Frequency 50/60Hz
Inrush Current
Running Current
Surge Protection
Additional Surge Protection
(On Request)
Lighting Controls Options NEMA 3, 7, Miniature Photocell, Zhaga Book 18 (SR) Socket, PND and CMS compatible
Dimming Protocols DALI

Mechanical Characteristics

Housing Material High pressure die cast LM6 aluminium
Housing Finish Chromate free pre-treatment, polyester powder coat, light grey (RAL9006), dark grey (RAL7022), black (RAL9005) or bespoke colours on request
Cover Material Toughened flat safety glass
Lens Material PMMA
Ingress Protection Rating IP66
Weight 7kg
Wind Area 0.06m²
Impact Resistance Rating IK08
Mounting Methods Post top 60mm or 76mm
Side entry 34mm, 42mm, 60mm or 76mm
Mounting Inclination -10°, -5°, 0°, 5°, 10°
Photometric Centre 300mm (to centre of PCB)