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World leaders in
LED Lighting and Control

VTR4 Strobe Lights

  • VTR4 ANPR LED Strobe
  • VTR4 ANPR LED Strobe
  • VTR4 ANPR LED Strobe

VTR4 High power LED strobe lights for intelligent traffic monitoring applications

Key features:

  • Compact LED light source
  • Up to 3.5kW LED Pulse Drive Power
  • Ideal for ANPR / LPR based applications
  • Fast repetition rate for high frame rates
  • IP66 enclosure for outdoor installation
  • Choice of IR wavelengths
  • Pulse width to 3mS
  • Pulsing to 10 kHz
  • External trigger or free running strobe
  • Compatible with Traffic cameras such as JAI and Sony

For a full specification please refer to the VTR Series datasheet

Typical applications:

ANPR / LPRCar parking systemsRail Container scanning
Red Light ViolationToll management systemsWeigh in motion
Speed enforcement

The VTR4 utilises the latest power LED technology available - delivering up to 3.5kW pulses to the LED array and therefore opening new applications with increased illumination distances. It is fully integrated with internal timing, intensity control, trigger input and long distance communications, including Ethernet and RS232 – making the VTR4 particularly suitable for applications such as ANPR (automatic number plate recognition), Red Light Violation, Open Road Tolling and Weight-in Motion Systems.

The VTR4 represents high power within a single IP66 rating enclosure, and has the option to be operated in a free running mode from a programmable internal timer. A trigger input can be used to synchronise the lighting pulse with the exposure of a camera. Full intensity and pulse width control are available through the trigger input and remote communications port. There is an internal interlock to prevent the lighting being triggered too fast.

For applications using analogue cameras without a trigger function, the VTR4 lights can be synchronised to strobe at the video frame rate. Taking a spur from the PAL or NTSC video feed, the VTR4 light synchronises with the video offering enhanced illumination for image acquisition. Additional options include a mounting bracket that allows ±30° or radial movement for pan & tilt adjustment and a sunshield for situations where a high degree of ambient sunlight could cause excess heat problems. The Gardasoft White Paper on Intelligent LED ITS Lighting technology is a useful reference for the principles of attaining maximum performance for Traffic ANPR / ALPR illumination.

WavelengthWhite, 850nm (other wavelengths on request)
Pulse width timing controlPrecise Internal timing generation or external control
Maximum pulse width3ms2ms
Maximum trigger frequency10kHz5kHz
Maximum duty cycle at 100% intensity2% (850nm), 1% (White)2% (White, 850nm)
Full beam angle (FWHM at 70% power)12 or 30 degrees
Other angles optional
White: 12 or 28 degrees
IR: 14 or 28 degrees
Other angles are an option for VTR4
Lighting drive power (pulsed)
Brightness repeatability±1%
Power supply requirement24V DC ±5%, 3.2A
(12V DC option available)
24V DC ±5%, 5A24V DC ±5%, 8A
(excluding cable entry and studs)
246mm (w) 256mm (h)
50mm (d)
408mm (w) 484mm (h)
65mm (d)
518mm (w) 484mm (h)
65mm (d)
Trigger Input5V to 24V opto-isolated with spike filtering
Trigger OutputProgrammable frequency, delayed or advanced camera trigger (24V, 20mA, opto-isolated)
Control/CommunicationEthernet or RS232
Operating temperature-20°C to +60° (subject to configuration)
Storage temperature-20°C to +80°
Environment protectionIP66, weatherproof cabling