4000W Solar Panel Kit with 12V Inverter & Controller

Name: 4000W Solar Panel Kit with 12V Inverter & Controller
Brand: ProlineOffice
SKU: KU-4020EC#SPPLSGBNP2601199033
Price: 61.46 GBP
Availability: InStock

£61.46

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365-Day Money-Back Guarantee

If you are not completely satisfied, you can request a refund within 365 days of receiving your order. We accept returns of unused items in their original condition (including packaging and accessories) as well as products with manufacturing defects.

7-Year Product Warranty

Proline Office offers a 7-year warranty covering defects in materials and workmanship from the date you receive your product. If your product is defective, simply contact our customer service with details and photos, and we will repair or replace it free of charge. If we are unable to resolve the issue, we offer a refund based on usage.

Need Help? Just Ask!

Need help with this product? Our friendly support team is just a message or phone call away. Email us at cs@prolineoffice.co.uk or call us at +441213682209. We'll make sure your purchase is easy and enjoyable every step of the way.

Solar Panel:

Size: 16.54" x 10.83"
Power: 18W
DC IN/OUT Output: 12V*2.4A
USB Output: 5V 2.4A
Weight: 0.6kg
Material: Aluminium Substrate + Efficient Chip + PET
Solar Charge Controller:
Size: 5.28" x 2.76"
Rated Charging Current: 30A
Rated Discharging Current: 30A
Voltage: 12V/24V Auto-detection
USB Output: 5V 3A
Standby Current: <10mA
Operating Temperature: -35℃ to +60℃

Power Inverter:

Size: 6.5" x 4.41" x 2.2"
Peak Parameters: 4000W
Output Waveform: Modified Sine Wave
Input Voltage: 12V
Output Voltage: 220V ± 10%

4000W Solar Panel Kit with 12V Inverter & Controller Description

Reliably power devices off-grid or on the move with this 4000W peak 12V DC to 220V AC modified sine wave inverter and 50A PWM solar charge controller kit. Perfect for RV camping, van life, emergency backup, outdoor adventures, and small solar setups—charge phones via dual USB, run lights, fans, laptops, TVs, or small appliances through universal AC sockets. Full safety protections (overload, over/under voltage, short-circuit, overheat, reverse polarity) plus silent intelligent cooling fan ensure secure, quiet operation. Digital LCD displays real-time status. Simple alligator clip/screw connection for fast setup. Rugged aluminum build backed by 7-year warranty and 365-day money-back guarantee.

4000W Solar Panel Kit with 12V Inverter & Controller FAQs

How safe is this inverter and controller combination?

Safety is prioritized with comprehensive protections on both units: inverter includes overload, over/under voltage, short-circuit, over-temperature, and reverse polarity safeguards; 50A controller adds MCU-controlled overcharge, over-discharge, reverse battery, and short-circuit protection. Intelligent cooling fan runs silently only under load to prevent overheating. Modified sine wave is safe for most resistive/moderate inductive loads (lights, fans, TVs, laptops, small tools). Never exceed continuous power rating (~800–1500W) and avoid sensitive pure-sine-required devices. Clear warnings and sturdy build quality provide reliable daily protection for camping, RV, or emergency use.

Is the 4000W rating realistic, and what are the actual usage limits?

4000W is peak/surge power (short 2–5 second bursts for motor startups). Continuous/rated power is typically 800–1500W depending on cooling and battery condition—operate at 80% or less for best longevity. Safely power: phone/laptop charging (USB), LED lights, small fans, mini fridge, CPAP, 500–1000W tools, or multiple low-power devices. Avoid high continuous loads (kettles, microwaves, heaters >1500W). The 50A controller supports efficient solar charging/maintenance. Real boundary: excellent for RV/van/off-grid essentials, but match load to your 12V battery capacity to prevent shutdowns or strain.

What real-world scenarios is this kit ideal for?

Perfect for mobile and off-grid power needs: RV/camper van trips (run lights, fans, fridge, charge devices), camping/outdoor adventures (portable lighting, phone charging, small appliances), emergency home backup (outages—TV, radio, CPAP), fishing/boating (small pumps, lights), remote work sites (tools, laptops). Dual USB ports enable fast device charging; universal AC sockets power everyday gear. 50A controller safely manages solar input to keep batteries topped up. Silent fan ensures quiet operation at campsites. Simple clip/screw connections make it practical for quick setup in daily off-grid or travel situations.

How easy is installation/use, what about heat/noise, build quality, and warranty?

Installation is extremely user-friendly: inverter uses alligator clips or screw terminals to 12V battery; controller mounts with screws and simple wiring to solar panel/battery/load. No complex tools needed—plug-and-play for most users. Intelligent silent fan activates only under load—very low noise during normal operation. Aluminum housing + thick heat sink provide solid, premium feel and excellent passive/active cooling. LCD displays voltage/power clearly. Modified sine wave suits general devices (not pure sine for sensitive equipment). High-quality construction with CE compliance. We offer a 7-year warranty on inverter/controller + 365-day money-back guarantee with responsive support—shop confidently.