Stabilized voltage may save energy by more than 20%, and life of the system equipment may last 15 years and above. Customers may benefit from one-time investment.

195V～225V slow ramp voltage output facilitates glow starting of gas discharge lamps, thus preventing lamps from high-voltage impulse.

Steeples voltage regulation may avoid damages of intense voltage fluctuations to lamps, and greatly enhance life of lamps.

Users may set energy-saving voltages by themselves based on actual needs, and control operation time of lighting load and power supply voltage through programming.

Use of the system can extend life of the lamps by more than twice, thus substantially trimming maintenance cost for lighting system.

The system ensures normal start, stable operation as well as flicker and interruption-free capabilities, with no harmonic pollution to grid. Meanwhile, the system has automatic or manual bypass functions, which enables prompt switch to power supply through grid in case of failure, thus making operation safe and reliable.

Taking into account the influence of actual traffic conditions on expressways such as CO pollution, coal particle deposition, vibration and humidity on lighting, UNISITS's lighting control system is particularly suitable for lighting system of expressway tunnels.