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OEM Automation

AutoLog® SaveLight - Street Light Management System

AutoLog SaveLight is a complete management solution for street lights. SaveLight gives up to 65% energy savings by optimizing burning times and dimming at off-peak traffic hours. It also gives substantial maintenance cost savings by detecting burned lamps. It allows remote street lights control so lights can be easily controlled ON/OFF on special situations. The SaveLight system is based on AutoLog ControlMan IoT SCADA and AutoLog GSM Controllers, both used over 10 years.

AutoLog SaveLight-PLCBUS gives new intelligent way to manage street lights!


  • With new AutoLog PLCBUS- technology you can achieve up to 65% energy, CO2 and money savings savings compared to conventional "ON/OFF" controlling.
  • Additional energy savings by optimising burning times at off-peak traffic hours.
  • Substantial maintenance cost savings by detecting burned lamps.
  • Easy to install to existing street light systems, doesn't need new lamps, main cables or big dimming tranformers - economical
  • More flexibility and scalability, free street light network form. Controls are send using Power Line Communication -method.
  • Automatic voltage detection and compensation in the end of the power line branches - lights doesn't blink even if low voltage is used.
  • Allows longer cables, controllers have communication signal repeater function.
  • Power savings are calculated as square of U (P=U^2/R). In reality the saving are even bigger because the resistance gets smaller when lamp is not so hot. In real projects up to 65% energy savings have been measured when lights are dimmed.
  • 65% energy saving leads to 65% money saving and 65% lower carbon dioxide emission!
  • Continuous power supply to control units enables implementation of other applications such as the powering of WiFi terminals and video surveillance cameras.
  • Allows remote street lights control so that lights can be easily controlled ON/OFF on special situations.
  • Based on rock solid AutoLog RTU technology. (Used since 1976 in 10.000+ apps.)
  • Wide operating range -30°...+70°C.
  • Reliable GSM/GPRS and SMS as a backup communication. Advanced GSM communication functions.
  • Web based, multi featured interface for managing street lights.
  • Centralized and shared information about street lights. Burning hours, energy
    consumptions, broken lights etc. can be turned into graphical reports.
  • Same system can be used also in other municipal applications like pump stations, buildings, district heatings, dumps etc.
  • Short payback time.
  • More than 120.000 street lights are controlled with AutoLog Savelight!


AutoLog SaveLight Street Light Management System datasheet.


AutoLog SaveLight presentation


Contact us and ask AutoLog SaveLight Street Light Management System specification. (Available).


  • Anjalankoski (Finland)
  • Jällivaara (Gällivare, Sweden)
  • Heinola (Finland)
  • Hyvinkää (Finland)
  • Joutsa (Finland)
  • Jyväskylä (Finland)
  • Kangasala (Finland)
  • Karkkila (Finland)
  • Keuruu (Finland)
  • Kinnula (Finland)
  • Kouvola (Finland)
  • Kuusamo (Finland)
  • Mikkeli (Finland)
  • Multia (Finland)
  • Nastola (Finland)
  • Pieksamäki (Finland)
  • Pori (Finland)
  • Rovaniemi (Finland)
  • Salo (Finland)
  • Tampere (Finland)
  • Uurainen (Finland)
  • Vaasa (Finland)
  • Ylöjärvi (Finland)
  • Others installations in Middle-East and Asian region

AutoLog Technology

The SaveLight system is based on well-proven AutoLog technology. AutoLog control unit controllers has been designed and manufactured in Finland by FF-Automation since 1976. Almost 40 years AutoLog control units and complete remote monitoring and controlling solutions has been used all over the world. AutoLog SaveLight systems are controlling street lights in many cities including Finland’s 2nd biggest city Tampere.

FF-Automation has long term knowledge and capability to make reliable, flexible and long life span solutions, with complete support and training for local installation-, operation- and maintenance teams. The investment costs and payback time can be estimated beforehand.


street lights control

Architecture (without PLCBUS)

One SaveLight feeder pillar can control up to 50-500 lamps (3x22kW), depending on the feeder pillar equipments, cables and lamp types. SaveLight Control Units can be installed inside the existing feeder pillar cabinets or FF-Automation can supply feeder pillar cabinets. One SaveLight control unit can control street lights by controlling the supplied power to the street light power cable(s). Street lights can be also be dimmed by lowering the the supply voltage. Street lights can be controlled according to reference light sensor(s) and/or clock and calendar or manually from the SaveLight Web interface.

SaveLight Control Units communicate wirelessly and bidirectionally with SaveLight servers through GSM / GPRS / Internet networks. Light switching is reliable and GPRS communication can be replaced with SMS as backup communication if the master unit doesn't receive acknowledgement. SaveLight servers and control units can be maintained remotely via GSM and Internet networks.

SaveLight servers are hosted by well proven Internet hosting companies with 24/7/365 maintenance and data backup plan. SaveLight application is always running on the latest server technology and software platform. Customer doesn't need own server or maintenance teams for the server. Servers receive, store and share the information to authorized users through secure https:// connection. SaveLight user interface can be opened anywhere without any client software installations using normal web browser. SaveLight is very long term, reliable and high technology solution.

System is easily expanded and maintained. New configurations can be made remotely. System allows easy creation of several user groups with different user levels. One SaveLight system can be expanded unlimitedly by adding new control units and servers.

Maintenance, training and support

FF-Automation can give comprehensive and long term support and training for the local installation, operation and maintenance teams. SaveLight servers and Web application can be maintained by FF-Automation engineers. SaveLight system reports automatically if something abnormal happens in the system so local maintenance team and FF-Automation engineers can solve the problems immediately.

Ask for an AutoLog® proposal

Without commitment FF-Automation will analyse your street light system requirements free of charge.  Therefore there is nothing to lose and everything to gain by requesting an AutoLog quotation for a system to monitor and control your street light application.

AutoLog® spare part service

FF-Automation guarantees delivery of spare parts for 10 years after initial product delivery, and will carry out the service for AutoLog® control systems according to a predefined order of priority and price structure. So there are no unpleasant surprises or additional costs with AutoLog products.
We can supply our customers, machine and equipment manufacturers, with their own stock of spare parts for easy servicing of their equipment. If desired, the total pricing of an AutoLog control system can be determined on the basis of a service contract.

Please call or e-mail to get more information!

Tel: +358 10 2190 500
Fax: +358 3 5846 711

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