JAI | TNL-50 LED flash unit for ITS applications

LED flash unit for ITS applications

JAI’s TNL-50 is a compact, lightweight, high powered LED flash unit providing off-angle scene illumination with beam angles suitable for single-lane or dual-lane coverage. Its high strobe frequency allows for a very short trigger-to-trigger interval for use with heavy and/or fast-moving traffic, including a 75 Hz burst mode for image sequences.

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Product Image Tnl50 Front Angle
Product Image Tnl50 Front Reverse Angle
Product Image Tnl50 On Rig

Off-angle illumination for better enforcement

The TNL-50 is designed to complement on-axis ring lighting used to illuminate number plates in dark conditions. Its off-angle illumination makes sure that the entire vehicle and surrounding details are also properly exposed for a more complete and indisputable enforcement package.

“Traffic Safety Mode” enables day/night color imaging

An advanced “Traffic Safety Mode” combines continuous low intensity lighting with triggered strobe pulses to minimize driver distraction and allow white/blue light (for color imaging) to be used in situations where not previously possible.

Multiple spectral options

With wavelength options including NIR (850nm), blue (470nm), and white (visible spectrum), the TNL-50 can be configured to support the highest possible automated read rates regardless of time-of-day or number plate color schemes.


  • High powered, compact size, and lightweight LED flash unit.

  • Provides off-angle illumination of vehicles and scene details.

  • Single- or dual-lane coverage.

  • Up to 75 Hz for traffic bursts & image sequences.

  • Near infrared (invisible), white, or blue spectral combinations.

  • Field proven IP66 enclosure for long-life operation.

  • Can be used with JAI or third-party vehicle imaging systems.


Illumination type

High powered LEDs


NIR (850 nm), blue (470 nm), or broadband white

Optical ouptut

2400W lighting drive max (pulsed)
190W total radiant flux (pulsed)
Intensity variation <1%

Lane coverage

Two options: 20° (single lane) or 40° (double lane)

Trigger frequency

Up to 75 Hz for traffic bursts and image sequences

Pulse width control

Programmable or controlled by input pulse width

Communication control

Control via USB, RS485, or via VISCAM system


IP66 and IK07 protection. Corrosion resistant.


24V DC +/- 10%. Up to 5.5A with heaters on and high frequency strobing.

Operating temperature

-30°C to +55°C


4.0 kg maximum

Dimension Image Tnl 50 Front

Here are a few applications where TNL-50 systems are especially suitable

TNL-50 LED flash systems can be configured for a variety of ITS applications.

Toll collection and violation enforcement

At traditional toll booths, TNL-50 complements LED ring lighting to provide the off-axis illumination needed to ensure proper exposure of vehicles in all lighting conditions.

Open road tolling (ORT)

High speed, free-flowing traffic is easily supported by TNL-50’s high strobe frequency and short trigger-to-trigger interval.

Border and access control

TNL-50 provides reliable 24/7 operation for monitoring border crossings or for vehicle identification prior to granting access to restricted facilities.

Weigh-in-motion systems

For integrators implementing weigh-in-motion systems, TNL-50 ensures that reliable plate and vehicle images of large vehicles can be captured day or night at normal traffic speeds to maximize the efficiency of transport.

Jai Its Flash Illumination White Paper Download 770X470Px 2

Download White Paper: Guidelines for night time flash illumination in ITS applications

Useful guidelines on how to capture clear images of license plates and vehicles at night time.

Download the Flash Illumination Whitepaper

Find the perfect traffic imaging solution to meet your application requirements

Get advice from our product engineers.

Contact a JAI engineer
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