Guardian Pro – Marine & Industrial Critical Solar Power System
Descriptions:
Guardian Pro JV1290MRN is a critical solar power system by JOYVOIT, engineered for marine, coastal, and industrial environments where communication and surveillance equipment must operate continuously without grid power.
As the highest-capacity model in the JOYVOIT Guardian Critical Solar Power Series, Guardian Pro is purpose-built for Starlink, PTZ CCTV, and marine communication systems operating in harsh, corrosive, and hard-to-access locations.
⭐ What Is Guardian Pro
Guardian Pro is a high-capacity DC off-grid solar power system designed for demanding applications with extended runtime requirements. It delivers stable, regulated DC power for mission-critical equipment on boats, offshore platforms, ports, and industrial sites.
Unlike standard outdoor solar kits, Guardian Pro is designed from the ground up for continuous operation, minimal maintenance, and long service life in environments exposed to salt spray, humidity, vibration, and temperature variation.
Typical use cases include:
- Starlink internet systems on boats and offshore platforms
- Marine and coastal PTZ CCTV surveillance
- Ports, marinas, and harbor security systems
- Offshore communication and wireless relay stations
- Remote industrial and coastal infrastructure
🔋Why Guardian Pro Is a Critical Solar Power System
Guardian Pro follows critical power design principles, focusing on reliability rather than peak power or residential versatility.
Key design priorities:
- 24/7 continuous-duty operation
- Stable DC power delivery for sensitive electronics
- Reduced failure points through inverter-free architecture
- Industrial lithium battery storage
- Proven reliability in unattended installations
This makes Guardian Pro suitable for applications where power loss is unacceptable.
🌞Why DC Solar Power Is Essential for Marine Applications
Marine and offshore environments place unique demands on power systems. Guardian Pro uses a 100% DC solar architecture, optimized for networking and surveillance equipment.
Advantages of DC solar power at sea:
- Higher overall efficiency
- Lower heat generation
- Reduced electrical noise
- Fewer components and failure points
- Safer operation in wet and corrosive environments
For Starlink, PoE CCTV, and marine telecom equipment, DC solar power provides superior stability and longevity compared to AC-based systems.
🎯 Typical Applications
Guardian Pro is widely used in:
- Starlink terminals on boats, yachts, and offshore platforms
- Marine and coastal PTZ CCTV surveillance systems
- Port, marina, and harbor security installations
- Offshore wireless bridges and communication nodes
- Industrial and coastal monitoring infrastructure
It is designed for high-load systems and extended runtime autonomy.
⚡System Configuration (Typical)
The following configuration represents a standard Guardian Pro system. Final specifications may be adjusted based on project location, load profile, and environmental conditions.
Solar Panels
3 × 430W monocrystalline solar panels (total 1290W, configurable)
High-efficiency, outdoor-rated modules
Suitable for marine and coastal installations
Battery Storage
Battery type: LiFePO₄ (Lithium Iron Phosphate)
Nominal voltage: 25.6V
Capacity: 200Ah (5.12kWh)
Industrial-grade cells with integrated BMS
Long cycle life for continuous operation
Solar Charge Controller
MPPT solar charge controller
24V system architecture
RS485 (Modbus RTU) communication interface
DC-DC Converter
DC input range: 18–30V
Output voltage: 54V DC
Maximum output current: 8A
Dedicated DC output for Starlink terminals
Dedicated DC output for POE Switch
Enclosure & Protection
IP65-rated metal enclosure
Corrosion-resistant surface treatment
Designed for wall, pole, or mast mounting
Suitable for marine and coastal environments
Mounting brackets
- Premium Aluminum Alloy
- Heavy-Duty Wind Resistance
System configuration can be customized for solar input, battery capacity, and output requirements.
Design Assumptions
Guardian Pro is designed based on the following typical conditions:
High-load communication and surveillance equipment
Target autonomy: 24 hours or more
Outdoor, unattended installation
Priority on reliability, safety, and service life
These assumptions ensure stable long-term operation in demanding environments.
Application Limitations
Guardian Pro is not intended for:
Residential household power supply
AC appliances requiring inverters
High-inrush industrial machinery
For mixed AC/DC loads, a dedicated hybrid system should be considered.
Expansion & Customization Options
Guardian Pro supports project-specific customization:
Additional battery capacity for extended autonomy
Expanded solar array for low-irradiation regions
Alternative DC voltage outputs
Integration with monitoring and alarm systems
JOYVOIT’s engineering team provides system design support for complex marine and industrial projects.
Reliability & Marine-Grade Design
Corrosion-resistant enclosure and components
Industrial-grade lithium battery storage
Designed for vibration and harsh weather conditions
Factory-tested before delivery
Guardian Pro is built to deliver dependable power where maintenance access is limited.
Part of the Guardian Critical Solar Power Series
Guardian Pro is part of the JOYVOIT Guardian Series, covering a full range of critical solar power solutions:
Guardian Mini – ultra-low power systems
Guardian Relay – communication relay and network nodes
Guardian Core / Core+ – surveillance and 24/7 systems
Guardian Pro – marine and industrial applications
Frequently Asked Questions
Can Guardian Pro power Starlink and PTZ CCTV simultaneously?
Yes. Guardian Pro is designed to support Starlink terminals and PoE-powered PTZ cameras concurrently.
Is the system suitable for offshore and coastal environments?
Yes. The system uses corrosion-resistant materials and an IP65 enclosure for marine use.
Can the system be customized for larger projects?
Yes. Solar input, battery capacity, and outputs can be customized based on project requirements.
Guardian Pro is a professional critical solar power solution by JOYVOIT, purpose-built for marine and industrial applications where reliability is essential.

Guardian™ Critical Solar Power Systems
Model: Guardian™ Critical Solar Power Systems
1.Designed for Critical Loads
Stable power for Starlink, CCTV, wireless and communication equipment
2.Reliable 24/7 Operation
Engineered for continuous runtime in off-grid environments
3.Industrial-Grade Lithium System
Long-life LiFePO₄ batteries with high temperature tolerance
4.Built for Harsh Conditions
Proven performance in heat, dust, humidity and remote sites
Guardian Relay – Off-Grid Solar Power Kit for Starlink & Wireless Networks
Model: JV430CT
1.DC off-grid solar power for Starlink & relay networks
2.60W continuous load, LiFePO₄ battery storage
3.High-efficiency, inverter-free DC design
4.Outdoor-rated IP65 enclosure, 24/7 reliability
Off-Grid Solar Power System for Starlink 4G/5G
Model: JVST150
1.Off-Grid Power
2.High-Efficiency Mono Panels
3.Smart MPPT Controller
4.Expandable LiFePO4 Battery
5.Portable Metal Power Box
6.Complete Plug-and-Play Kit
7.Versatile Applications
Customer feedback on our solar products
M***f
Jan 5, 2023
I have pleasant experience buying from Shenzhen Suns. They shipped quickly, and very responsive and provided accurate updates. Shipment to Malaysia reaches in just a few weeks with a door to door delivery. Equipment work great, as can be seen from the photos, in the midst of installation and already in operation. The sales representative (Amy) has provided good knowledge and helpful to guide me to make the purchase correctly. Thank you Amy and thank you Shenzhen Suns and this company is highly recommended!
M***k
Jan 5, 2023
very impressed with of the company Suns Energy, professional communication and they really went the extra mile. The product looks professional and transport and packaging was very good. happy customer and will definitely do business again
Join the Solar Revolution with SHENZHEN SUNS ENERGY!
Join 80,000+ customers. Explore innovative solar solutions for a greener future. Act now for a brighter tomorrow!





