Ligh-T 4
The Ligh-T 4 is a compact, man-portable tethered drone ground station manufactured by Elistair that supplies continuous electrical power via a 70-meter kevlar-reinforced tether to compatible multirotor drones, enabling unlimited-endurance aerial surveillance. Weighing 20 kg and deployable in under 5 minutes, it is designed for first responders, law enforcement, and surveillance operations. The system requires a compatible drone and human pilot for operation.
Overview and Use Cases
The Ligh-T 4 is a tethered unmanned aerial system (UAS) ground station produced by Elistair, a manufacturer based in Dardilly, France. The system consists of a power delivery station only and does not include a drone. Compatible airframes include the DJI M300, M350, M30, and other multirotor platforms. Operation requires a human pilot; autonomy capabilities are limited to the drone platform itself, not the tether station.
The product is marketed for applications including first responder operations, law enforcement surveillance, border monitoring, and event security. According to manufacturer data, over 1,000 units have been deployed across 60+ countries, with a cumulative operational record exceeding 50,000 hours of aerial observation.
Key Capabilities
- Continuous power delivery via 70-meter kevlar-reinforced tether
- Enables unlimited-endurance flight of compatible drones
- Deployment achievable in under 5 minutes
- Man-portable design for field mobility
- Compatible with multiple DJI multirotor platforms
- Requires human pilot operation
Specifications
Power Output:
- Peak output: 1,800 W (official datasheet specification)
- Output limit on 120 VAC input: up to 1,200 W
Power Input:
- Primary: 230 VAC, 50–60 Hz, minimum 4 kW
- Secondary: 120 VAC, 50–60 Hz, minimum 3 kW (limited output configuration)
- Input range: 110–200 VAC AC
Physical Characteristics:
- Weight: 20 kg (44 lbs)
- Dimensions: 627 mm × 475 mm × 292 mm (25" × 19" × 12")
- Tether length: 70 meters
- Tether material: kevlar-reinforced
Applications
The Ligh-T 4 is designed for operational contexts requiring sustained aerial observation. Primary use cases include emergency response operations, law enforcement surveillance, critical infrastructure monitoring, border security, and large-scale event security. The tethered configuration allows persistent positioning without the flight-time constraints of battery-powered aerial systems.
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