VMS P38 Solar-Powered Mobile Monochrome Display
The solar-powered mobile VMS display is composed of a box, multiple modules, solar panels and a trailer. The box has an open front design, making it convenient to open the display for inspection and maintenance. The display is powered by solar energy. The entire product can be moved to different sites at any time through the trailer below. For the specific structure, please refer to the relevant drawings. The LED of the solar-powered mobile VMS display adopts the direct-insert type large chip light bulbs of traffic signal lights. The LED chips are made of imported crystals, with high brightness and long service life. The display receives information released by the monitoring and management computer and can display Chinese, English, numbers, etc. Before leaving the factory, the program has been debugged by our factory’s technology. The program can be switched by pressing the keys on the control box behind the display (If you need to change other programs, please consult our staff. Do not move it privately. Please contact our staff).
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1）.The cabinet is made of sheet metal chassis, with electrostatically sprayed yellow finish. It has good surface quality, no reflection, anti-glare properties, is fully enclosed, all-weather, and rainproof. It has excellent oxidation resistance and good strength and wind resistance performance.
2）.The protective layer of the screen body shell and connecting parts has uniform color, no scratches, no cracks, and no exposed base material, and its physical and chemical performance indicators meet the requirements of relevant national and industry standards.
3）.The trailer is hot-dip galvanized:
The characteristics of hot-dip galvanizing mainly include the following aspects:
- Strong corrosion resistance
- Good wear resistance
- High temperature resistance
- High strength
- Uniform coating with strong adhesion
- Good appearance
- Environmentally friendly and energy-saving
4）.The entire product is powered by solar energy, avoiding the complexity of wiring.
5）.The solar panel and display screen are integrated. The solar panel can be adjusted in angle according to the on-site environment (such as 45°, 60°, etc.), and it is also convenient for the solar panel to be packed.
6）.The program of the display screen has been debugged and can be switched on the keyboard of the control box on the back of the display screen.
7）.The mobile display screen can be applied to various venues.
8）.The power lines and communication lines are laid horizontally and vertically, meeting the process and visual aesthetics requirements of the cabinet.
P38 Solar VMS Display
The P38 Solar Single-Color VMS Liftable Mobile Display is a mobile variable message sign designed for use in temporary outdoor scenarios such as road maintenance operations, emergency response to traffic accidents, temporary traffic control measures, and traffic management during large-scale events. P38 Solar VMS Display utilizes yellow monochromatic LED lighting and integrates a solar power supply system, an energy storage battery, a towable chassis, and a liftable display screen. This device enables the dynamic dissemination of text-based warning messages to passing vehicles, providing updates on road conditions, construction activities, speed limits, and alternative routes, thereby enhancing road safety. (As shown in the figure below)
P38 Solar Single-Color VMS Lift-and-Move Display Screen – Product Features
Independent solar power supply
Top-mounted solar panels combined with an integrated storage battery eliminate the need for external mains power, enabling continuous operation in remote areas or construction sites without grid access; in cloudy or rainy conditions, the device operates on battery power.
Mobile traction deployment
The trailer chassis is equipped with a towing hook and leveling support legs, enabling P38 Solar VMS Display to be towed and relocated by a vehicle; the support legs can be deployed and secured on-site for rapid installation without requiring any infrastructure setup, making P38 Solar VMS Display ideal for quick deployment at temporary locations.
Single yellow LED matrix display
High-brightness yellow LED – provides a long visible range under strong lighting conditions, complying with traffic warning visual standards; supports customizable text, symbols, scrolling, and flashing display modes; allows editing of speed limit, warning, and notification messages.
Multi-modal content editing
Supports local content modification via USB drive; optional 4G remote or wireless Bluetooth connectivity allows computers or smartphones to send modification instructions for display text – eliminating the need for on-site device disassembly or servicing.
High outdoor protection
The device features IP65 protection rating and a corrosion-resistant metal casing, making P38 Solar VMS Display suitable for outdoor road environments subject to sun exposure, rain, and extreme temperatures. The screen height can be manually adjusted to change its orientation.
Road construction and maintenance scenarios (primary)
• Ahead-of-work warning: Construction ahead, reduce speed, narrowing lane, turn left/right; issue temporary speed limit alerts to remind vehicles to yield in advance and ensure the safety of construction workers.
• Temporary notices for road work or emergency repairs – serving as a substitute for traditional fixed warning signs, with content that can be updated at any time.
Traffic accident emergency response
The warning sign is quickly deployed at the accident scene to indicate the location of the accident, advise drivers to drive cautiously, alert them to potential congestion ahead and suggest taking an alternative route, help manage traffic flow, and warn rear-approaching vehicles of the risk of a secondary accident.
Severe weather and road conditions warning
Due to heavy fog, torrential rain, or icy road surfaces, road condition alerts are issued – advising drivers to reduce speed and maintain a safe following distance.
Temporary traffic control
For large-scale events, public gatherings, or road closure operations – including the issuance of traffic control notices and diversion guidance; also applicable for evacuation advisories at disaster relief sites.
Highway inspection and remote road sections:
For areas along national and provincial highways or suburban regions without a permanent mains power supply, temporary traffic congestion alerts, road condition updates, and traffic safety awareness slogans shall be issued.
MPPT charger/discharger
The ultra-fast charging method, combined with an ultra-energy-efficient power consumption mode – specifically the MPPT technology – enables rapid charging and low power consumption; the MPPT solar charging and discharging unit achieves an overall power generation efficiency that is 20–30% higher than that of traditional chargers.
Solar panels are foldable
The entire product is powered by solar energy, eliminating the need for complex wiring installations. The solar panel and display are integrated into a single unit; the solar panel can be adjusted in angle according to the local environmental conditions (e.g., 45°,60°, etc.), and P38 Solar VMS Display also facilitates the packaging of the solar panel.
Customizable to any size, specification, or display color (single yellow or full-color)
We can manufacture display screens in various sizes and specifications according to customer requirements; the color scheme can also be customized to meet client needs.
The P38 Solar Single-Color VMS Lift-and-Move Display Screen effectively addresses the core pain points faced by customers.
No mains power supply / Difficulty in obtaining power supply
The system utilizes solar power combined with energy storage batteries for independent power supply, eliminating the need for external mains electricity; it can be directly deployed and operated at remote construction sites, thereby saving on generator fuel costs and wiring installation expenses – making it ideal for long-term monitoring operations in areas without grid access.
Addressing unstable power supply for temporary operations
Integrated energy storage for continuous day-and-night operation; automatically adjusts brightness based on light conditions – charges during the day and turns on automatically at night – operates 24 hours a day.
Traditional fixed information boards cannot be migrated.
The towed-traction design enables the vehicle to be towed for relocation or when the construction site changes – allowing for direct removal and reinstallation; four-corner support jacks enable rapid ground-level leveling, enabling single-person installation within a short time without requiring any civil engineering foundation work, and allowing for flexible relocation as the project progresses.
Emergency scenarios require rapid deployment.
Ready to use – simply deploy the prompt text upon arrival without any civil engineering installation, meeting the requirements for rapid emergency response deployment.
Addressing the rigidity of traditional static signage information
Programmable single-yellow high-brightness LED light; allows for real-time text content modification; supports speed limit display, construction zone alerts, detour notifications, and accident warnings; the single yellow color is designated as a warning color in the transportation industry – offering long visibility distance under strong light, effective driver alerting, no glare under sunlight, and excellent recognizability in rainy or foggy conditions.
Given the variable on-site operating conditions, the prompt messages require frequent adjustment.
Supports local or remote content modification – eliminates the need to recreate signage, reduces material costs, and enables real-time synchronization of on-site traffic conditions.
Complex equipment and significant maintenance workload
Integrated trailer structure with high protection rating – waterproof and dustproof; the solar battery system requires virtually no routine maintenance, making long-term operation possible without the need for dedicated personnel.
The combined cost of generator and cable solutions is high.
Zero solar electricity costs, significantly reducing long-term operating expenses; the entire system features high-level IP65 protection, making it durable in outdoor environments exposed to wind, rain, or dust at construction sites – with a low failure rate that minimizes maintenance workload.
Addressing the harsh construction site environment and the poor wind resistance of the equipment.
Trailer chassis with four support legs – provides stable ground contact and wind resistance, prevents tipping at outdoor construction sites, and is ideal for outdoor placement alongside roads.
Insufficient signage at road construction sites and drivers' delayed recognition of hazards can easily lead to secondary accidents.
Active LED display ensures clear visibility both in bright daylight and in dark nighttime conditions; dynamic text alerts drivers to slow down in advance and yield the right-of-way, thereby reducing accident risks in construction zones.
P38 Solar Single-Color VMS Lift-and-Move Display Panel Wiring Instructions
Display Lift/ Lower Switch
Rise: Increase
Cease: Stop
Power On/Off Switch
"I":open
"O":Guan
Rod locking – Up/Down (If no person is present, please lock this key to prevent unauthorized raising or lowering of the screen).
Product Installation
Install the tires (be sure to tighten each nut in the correct direction – both the lower and upper nuts).
Align the holes on the tire mudguard with the holes on the trailer side panel; secure the mudguard to the wheel using four M12×90 screws and nuts.
Mount and secure the vehicle's body panel to the tires; then level the vehicle with the tires installed.
Assemble the jack sets (4 units in total): Use M10×90 screws; the screws on each jack are located on the top of the jack. During installation, simply remove these screws and then mount the jack.
Use a forklift to place the display screen on the cart (due to the screen's considerable height and size, please exercise extreme caution when placing it).
Tow bar installation:
Insert the trailer rod into the front end of the trailer, then install the trailer rod retention plate (secure it using two M12×30 screws), and finally insert the plug socket.
Trailer Index Head Installation
Align the four holes on the trailer index head with the four holes on the trailer rod, insert the screws, then secure them using a nut, spring washer, and spacer; finally, tighten with a wrench; (4 M12*90 screws and nuts).
Leading wheel installation
Install the guide wheel: Use four M12×130 screws and nuts to secure the two brackets and the guide wheel to the trailer rod; simply tighten the nuts with a wrench.
Handbrake installation
Align the mounting hole positions for the handbrake bracket with those for the trailer rod, then secure them using two M12×130 screws and nuts; finally, tighten the screws with a wrench.
Display screen fixed installation
After placing the display screen on the cart, secure the display screen battery box to the trailer using screws (4 M12×130 screws for fixation);
Display screen mounting screw method
Secure the turntable with screws (to prevent the display from rotating).
Solar panel installation
Install the solar panel mounting bracket and secure it to the display screen.
Brake line installation:
Install the brake line (we have already installed it).
Production Details
Batch Aging
P38 Solar VMS Display Usage Precautions
This product features an aluminum casing; heavy pressure should be strictly avoided to prevent damage to the casing. The device must be powered on only under the supervision of a qualified professional; do not disassemble or assemble the luminaire without authorization.
P38 Solar VMS Display After-Sales Warranty Terms
• Warranty Period: 3 years; the warranty covers only the main unit of the lighting fixture; accessories are not covered; custom-made products are excluded.
• Return Method: Customer returns
• Scope of Exclusion: Malfunctions resulting from human-induced damage or natural disasters are not covered under the warranty.
• Logistics Note: The shipping cost for returned items shall be borne solely by the shipper.
| Product model：WDM-XSP-P38-Y | |
| Product Name：Solar-powered mobile VMS display screen | |
| Height | 2900±100MM |
|---|---|
| Display size | 2027x1146MM |
| Trolley | 3500 (including the length of the rod) *1950MM |
| Lifting height | 600MM(conventional standard height) |
| Pixel spacing | 38MM |
| Pixel density | 330points /㎡ |
| Drive mode | constant current drive |
| Communication mode | communication interface |
| Average luminous intensity | ≥8000cd/㎡ |
| Viewing distance | static 300m, dynamic 250m |
| Pixel runaway rate | ≤ 1/100,000 |
| Flatness | ≤1mm |
| Operating temperature | -40℃~+70℃ |
| Relative humidity | 10% ~ 95% |
| Insulation specifications | >1500V |
| Current to ground | ≤3mA |
| Runaway point | ≤ 3 ‰ |
| Working voltage | DC12V |
| Solar panel | 450W |
| Battery | 200AH*2 |
| Reading mode | from left to right |
| Play mode | images, text information, etc. Alternate use or any combination |
| Average downtime | ≥ 30,000 hours |
| Screen life | ≥100,000 hours |
| Uniformity | pixel light intensity and module brightness are uniform |
| Box door | front door |
| Protection class | IP65 on both sides |
| fittings of a machine | quantity | Note: |
| display screen | 1 unit | External road signage display |
| Cart | 1 unit | Portable display screen |
| solar panel | 2 block | Solar panels with independent energy storage |
| Solar panel mounting bracket | 1 | Fixed solar panels |
| certificate | 1 piece | As a material release certificate |
| product specification | 1 piece | Includes product technical specifications, illustrated installation steps, and a safety and maintenance guide. |
