V11 Mobile Traffic Light with Countdown, D-200 mm LED, Set of 2, without Batteries

V11 mobile traffic light with countdown, set of 2

A driver waiting at a red light in front of a works section does not know how long the wait will be and is tempted to set off early. On the V11-21, the red and green lights show numbers that count down the seconds to the change. Otherwise it is the same traffic light as the V11-20: two mobile lights, one at each end of the narrowed section, giving green to the two directions in turn. Under SR 1848-1:2024, the mobile traffic light is placed on a narrowed road section to direct the two directions of traffic alternately.

What the set contains

Two complete traffic lights, each on a wheeled trolley that holds the battery, with a cover that opens to 180°, a support foot and a handle. The pole carries the signal head with 3 D-200 mm LED lights, with a countdown on red and green, and each light has its own control unit.

Manual synchronisation

There is no cable between the two lights: each control unit keeps time with an internal clock. You bring the lights side by side, set the same times on both, press START on the two units at the same moment, and only then take them to the ends of the section. Because they are not linked, the distance between the lights depends only on how long vehicles take to drive through the section. The lights must be synchronised again at least every 6 days, and while they run, staff must be present in the work zone.

Times and countdown

You set the red time in both directions and the green times for the two phases, each from 1 to 99 seconds, or from 5 to 495 seconds in x5 mode; from the factory they are 10 seconds. The countdown is switched on from the control unit's menu. One button switches the light to flashing yellow and back to the normal cycle.

Safety and power

The unit constantly checks the lamps and the battery and shows a code for a failed light, a low battery or a blown fuse; if the red light fails, the traffic light switches itself to flashing yellow. Each light runs on a 12 V battery or a 12 V power pack, not included. With a new 100 Ah battery, the tested autonomy is about 150 hours at 20 °C, and the light intensity adjusts automatically to the ambient light.

Weight and transport

One traffic light weighs 46 kg and the set 92 kg. The trolley box of one light measures 70 x 80 x 50 cm (height x length x width). The pole folds over the trolley for transport, and opened, the light's height adjusts between 180 and 235 cm. It works from -20 to +70 °C.

Without countdown and spare parts

The version without a countdown is the V11-20. Both use the V11-CONTROL control unit and the V11-D200-R, V11-D200-Y and V11-D200-G LED lights.

What the roadworks rules require (Order 1112/411/2000)

SR 1848-1:2024 provides the portable traffic light (V11) for a narrowed road section, to alternate the two directions of traffic. The methodological rules approved by Order MI/MT no. 1112/411/2000 allow three systems for alternating traffic: priority signs, traffic marshals, or traffic lights for automatic control, supplemented with priority signs. The system is chosen by traffic volume and section length; alternating traffic cannot be organised on a work section longer than 1,200 m. The section is announced in advance with the U9 (Traffic lights) temporary sign or the U34 panel.

The contractor installs the signing to the layout approved by the road authority with the traffic police's agreement, maintains and completes it for the whole job and removes it at the end; accidents caused by incomplete or missing temporary signing are entirely the contractor's responsibility.