ML4 UAV Searchlight Device

China Moneypro

The ML4 UAV Searchlight Device is a professional-grade aerial lighting system featuring a 2-axis stabilized gimbal with four LED lights delivering up to 4000 lumens. Equipped with precision motor control accurate to 0.02 degrees, it provides stable illumination up to 150 meters away. The aluminum alloy housing includes integrated cooling and vibration dampening for reliable performance. Supporting multiple control methods including PWM, TTL, and optional SBUS, it integrates seamlessly with open-source UAV platforms. Compatible with Viewport quick-release connectors for easy plug-and-play assembly, the ML4 is ideal for night surveillance, emergency response, search and rescue, and firefighting operations. Operating in temperatures from -20 to +60 degrees Celsius, it delivers professional lighting solutions for public safety and infrastructure maintenance applications.

The L4 Searchlight features a 2-axis stabilized gimbal equipped with four LED lighting units, delivering a luminous flux of up to 4000 lumens. The light can be turned on or off remotely using the included controller. Its integrated aluminum alloy housing, combined with a built-in cooling fan, ensures effective heat dissipation and resistance to interference. Vibration is minimized through the use of four damping balls and a lightweight damping plate. The gimbal allows for 300 degrees of rotation, providing flexible directional control. With an operational range of up to 150 meters, the L4 can be seamlessly integrated into open-source UAV platforms, offering reliable illumination during nighttime or extremely low-light conditions. It is ideal for applications such as night surveillance, emergency response, search and rescue, and firefighting operations.

Professional 2-axis High-precise FOC Program

The searchlight remains stable thanks to a highly refined 2-axis gimbal system. Its motors deliver extremely precise rotation, achieving a control accuracy of 0.02, all managed by a dedicated processor.

Multi Control Methods

Supports PWM and standard TTL serial by default, with SBUS available as an option.

Control box signal interfaces:

Compatible with Viewport

Searchlight is compatible with Viewpro quick release connector Viewport. Viewport is an option known as easy assembly, plug and play.

For more information about Viewport, please check below video instruction:

Applications

Mainly supply in public safety, firefighting, law enforcement, search and rescue, infrastructure/facility repair and maintennance etc.

Dimensions

Hardware Parameter
Gimble Working voltage	4S~6S
Searchlight Working voltage	17V
Output voltage	5V (connect with PWM)
Dynamic current	3000mA@17V
Working environment temp.	-20 ~ +60
Control method	PWM / TTL / S.BUS
Gimble Spec
Mechanical Range	Pitch: -30 230 , Yaw: 300
Controllable Range	Pitch: -25 90 , Yaw: 290
Vibration Angle	Pitch: 0.02 , Yaw 0.02
One-key to center
Searchlight Spec
Luminous Flux	4000 lm
Color Temperature CCT	6940K
Color Render Index Ra/CRI	72.3
FOV	8
Light range	150m
Area	346O @150m flight height
Power	38W
Packing Information
N.W.	630g(Viewport version)
Product meas.	129.570151.4mm(Viewport version)